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Label Class Base field Conductor norm Rank Torsion CM Sato-Tate Regulator Period Leading coeff j-invariant Weierstrass coefficients Weierstrass equation
4.1-a1 4.1-a 4.4.11348.1 \( 2^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $758.9865662$ 3.562414336 \( -\frac{4921}{2} a^{3} + 6772 a^{2} + 1016 a - \frac{9321}{2} \) \( \bigl[a^{2} - a - 3\) , \( a^{3} - 2 a^{2} - 3 a + 3\) , \( a^{2} - a - 3\) , \( -11 a^{3} + 18 a^{2} + 44 a - 40\) , \( 31 a^{3} - 49 a^{2} - 126 a + 103\bigr] \) ${y}^2+\left(a^{2}-a-3\right){x}{y}+\left(a^{2}-a-3\right){y}={x}^{3}+\left(a^{3}-2a^{2}-3a+3\right){x}^{2}+\left(-11a^{3}+18a^{2}+44a-40\right){x}+31a^{3}-49a^{2}-126a+103$
4.1-a2 4.1-a 4.4.11348.1 \( 2^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $84.33184069$ 3.562414336 \( -\frac{13274440865651}{8} a^{3} + \frac{36869954817925}{8} a^{2} + \frac{895143848177}{8} a - \frac{14988334856695}{8} \) \( \bigl[a^{2} - a - 3\) , \( a^{3} - 2 a^{2} - 3 a + 3\) , \( a^{2} - a - 3\) , \( 104 a^{3} - 162 a^{2} - 421 a + 325\) , \( -392 a^{3} + 641 a^{2} + 1565 a - 1383\bigr] \) ${y}^2+\left(a^{2}-a-3\right){x}{y}+\left(a^{2}-a-3\right){y}={x}^{3}+\left(a^{3}-2a^{2}-3a+3\right){x}^{2}+\left(104a^{3}-162a^{2}-421a+325\right){x}-392a^{3}+641a^{2}+1565a-1383$
4.1-a3 4.1-a 4.4.11348.1 \( 2^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $758.9865662$ 3.562414336 \( \frac{5170795}{4} a^{3} - \frac{11305515}{4} a^{2} - \frac{18112897}{4} a + \frac{32436575}{4} \) \( \bigl[a^{3} - a^{2} - 4 a + 1\) , \( -a^{3} + 2 a^{2} + 4 a - 2\) , \( a^{3} - a^{2} - 3 a\) , \( 5 a^{3} - 27 a - 16\) , \( 15 a^{3} - 86 a - 48\bigr] \) ${y}^2+\left(a^{3}-a^{2}-4a+1\right){x}{y}+\left(a^{3}-a^{2}-3a\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+4a-2\right){x}^{2}+\left(5a^{3}-27a-16\right){x}+15a^{3}-86a-48$
4.1-a4 4.1-a 4.4.11348.1 \( 2^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $84.33184069$ 3.562414336 \( -\frac{576237781537807354959}{64} a^{3} + \frac{159190226393205886841}{64} a^{2} + \frac{2996401580039519157509}{64} a + \frac{1592384258224686624515}{64} \) \( \bigl[1\) , \( a^{3} - a^{2} - 4 a\) , \( 0\) , \( -142 a^{3} - 239 a^{2} + 89 a + 107\) , \( 3213 a^{3} + 5278 a^{2} - 2141 a - 2437\bigr] \) ${y}^2+{x}{y}={x}^{3}+\left(a^{3}-a^{2}-4a\right){x}^{2}+\left(-142a^{3}-239a^{2}+89a+107\right){x}+3213a^{3}+5278a^{2}-2141a-2437$
4.1-b1 4.1-b 4.4.11348.1 \( 2^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $87.02407012$ 0.816920374 \( \frac{96026345973}{2048} a^{3} - \frac{26829847203}{2048} a^{2} - \frac{500046449383}{2048} a - \frac{265678036177}{2048} \) \( \bigl[1\) , \( -a^{3} + a^{2} + 5 a - 1\) , \( a\) , \( 67 a^{3} - 19 a^{2} - 349 a - 182\) , \( -463 a^{3} + 128 a^{2} + 2407 a + 1278\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(-a^{3}+a^{2}+5a-1\right){x}^{2}+\left(67a^{3}-19a^{2}-349a-182\right){x}-463a^{3}+128a^{2}+2407a+1278$
4.1-b2 4.1-b 4.4.11348.1 \( 2^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $0.719207191$ 0.816920374 \( -58621608199599841261523685365125 a^{3} + \frac{186324765270697790904663848098547}{2} a^{2} + 238215298486610603874100648409004 a - \frac{397963624619871051990068501920911}{2} \) \( \bigl[1\) , \( -a^{3} + a^{2} + 5 a - 1\) , \( a\) , \( -193 a^{3} - 484 a^{2} + 3676 a - 2802\) , \( -11222 a^{3} + 109824 a^{2} - 118878 a - 245314\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(-a^{3}+a^{2}+5a-1\right){x}^{2}+\left(-193a^{3}-484a^{2}+3676a-2802\right){x}-11222a^{3}+109824a^{2}-118878a-245314$
4.1-c1 4.1-c 4.4.11348.1 \( 2^{2} \) 0 $\Z/11\Z$ $\mathrm{SU}(2)$ $1$ $305.8508628$ 2.871111419 \( \frac{96026345973}{2048} a^{3} - \frac{26829847203}{2048} a^{2} - \frac{500046449383}{2048} a - \frac{265678036177}{2048} \) \( \bigl[a^{3} - a^{2} - 4 a + 1\) , \( -a^{2} + 2 a + 2\) , \( a^{2} - 2\) , \( -a^{3} + 5 a^{2} - 6 a - 5\) , \( 4 a^{3} - 15 a^{2} + 9 a + 1\bigr] \) ${y}^2+\left(a^{3}-a^{2}-4a+1\right){x}{y}+\left(a^{2}-2\right){y}={x}^{3}+\left(-a^{2}+2a+2\right){x}^{2}+\left(-a^{3}+5a^{2}-6a-5\right){x}+4a^{3}-15a^{2}+9a+1$
4.1-c2 4.1-c 4.4.11348.1 \( 2^{2} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $0.020890025$ 2.871111419 \( -58621608199599841261523685365125 a^{3} + \frac{186324765270697790904663848098547}{2} a^{2} + 238215298486610603874100648409004 a - \frac{397963624619871051990068501920911}{2} \) \( \bigl[a^{2} - a - 3\) , \( a^{2} - 3\) , \( a^{3} - 4 a - 3\) , \( 2901 a^{3} - 866 a^{2} - 14883 a - 8216\) , \( 10717520 a^{3} - 2961886 a^{2} - 55727837 a - 29617279\bigr] \) ${y}^2+\left(a^{2}-a-3\right){x}{y}+\left(a^{3}-4a-3\right){y}={x}^{3}+\left(a^{2}-3\right){x}^{2}+\left(2901a^{3}-866a^{2}-14883a-8216\right){x}+10717520a^{3}-2961886a^{2}-55727837a-29617279$
4.1-d1 4.1-d 4.4.11348.1 \( 2^{2} \) 0 $\Z/6\Z$ $\mathrm{SU}(2)$ $1$ $921.3779933$ 0.480513580 \( \frac{5170795}{4} a^{3} - \frac{11305515}{4} a^{2} - \frac{18112897}{4} a + \frac{32436575}{4} \) \( \bigl[a^{3} - 5 a - 3\) , \( a^{3} - a^{2} - 3 a - 1\) , \( a^{3} - 4 a - 2\) , \( -3 a^{3} + 8 a^{2} + a - 5\) , \( 75 a^{3} - 210 a^{2} - 4 a + 87\bigr] \) ${y}^2+\left(a^{3}-5a-3\right){x}{y}+\left(a^{3}-4a-2\right){y}={x}^{3}+\left(a^{3}-a^{2}-3a-1\right){x}^{2}+\left(-3a^{3}+8a^{2}+a-5\right){x}+75a^{3}-210a^{2}-4a+87$
4.1-d2 4.1-d 4.4.11348.1 \( 2^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $11.37503695$ 0.480513580 \( -\frac{13274440865651}{8} a^{3} + \frac{36869954817925}{8} a^{2} + \frac{895143848177}{8} a - \frac{14988334856695}{8} \) \( \bigl[a^{3} - 5 a - 3\) , \( -a^{3} + 5 a + 4\) , \( 1\) , \( 130 a^{3} - 45 a^{2} - 668 a - 318\) , \( 2334 a^{3} - 636 a^{2} - 12144 a - 6492\bigr] \) ${y}^2+\left(a^{3}-5a-3\right){x}{y}+{y}={x}^{3}+\left(-a^{3}+5a+4\right){x}^{2}+\left(130a^{3}-45a^{2}-668a-318\right){x}+2334a^{3}-636a^{2}-12144a-6492$
4.1-d3 4.1-d 4.4.11348.1 \( 2^{2} \) 0 $\Z/6\Z$ $\mathrm{SU}(2)$ $1$ $921.3779933$ 0.480513580 \( -\frac{4921}{2} a^{3} + 6772 a^{2} + 1016 a - \frac{9321}{2} \) \( \bigl[a^{3} - 5 a - 3\) , \( -a^{3} + 5 a + 4\) , \( 1\) , \( -15 a^{3} + 5 a^{2} + 77 a + 37\) , \( -17 a^{3} + 4 a^{2} + 89 a + 50\bigr] \) ${y}^2+\left(a^{3}-5a-3\right){x}{y}+{y}={x}^{3}+\left(-a^{3}+5a+4\right){x}^{2}+\left(-15a^{3}+5a^{2}+77a+37\right){x}-17a^{3}+4a^{2}+89a+50$
4.1-d4 4.1-d 4.4.11348.1 \( 2^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $11.37503695$ 0.480513580 \( -\frac{576237781537807354959}{64} a^{3} + \frac{159190226393205886841}{64} a^{2} + \frac{2996401580039519157509}{64} a + \frac{1592384258224686624515}{64} \) \( \bigl[a^{3} - a^{2} - 4 a + 1\) , \( a^{3} - a^{2} - 3 a\) , \( a^{3} - 4 a - 3\) , \( -20 a^{3} - 73 a^{2} + 20 a + 26\) , \( -312 a^{3} - 648 a^{2} + 235 a + 280\bigr] \) ${y}^2+\left(a^{3}-a^{2}-4a+1\right){x}{y}+\left(a^{3}-4a-3\right){y}={x}^{3}+\left(a^{3}-a^{2}-3a\right){x}^{2}+\left(-20a^{3}-73a^{2}+20a+26\right){x}-312a^{3}-648a^{2}+235a+280$
8.1-a1 8.1-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $989.9313991$ 2.323193825 \( -\frac{10546970661}{2} a^{3} + \frac{29270065195}{2} a^{2} + \frac{761086087}{2} a - \frac{11870894695}{2} \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{3} - a^{2} - 5 a - 1\) , \( a + 1\) , \( 2 a^{3} - 5 a^{2} - a + 10\) , \( -2 a^{3} + 7 a^{2} + 3 a - 5\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(a^{3}-a^{2}-5a-1\right){x}^{2}+\left(2a^{3}-5a^{2}-a+10\right){x}-2a^{3}+7a^{2}+3a-5$
8.1-a2 8.1-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $989.9313991$ 2.323193825 \( \frac{2414701}{2} a^{3} - \frac{3753195}{2} a^{2} - \frac{9723023}{2} a + \frac{8089111}{2} \) \( \bigl[a^{2} - 3\) , \( a^{2} - a - 3\) , \( a^{3} - 4 a - 3\) , \( -a^{3} + 2 a^{2} + 2 a - 7\) , \( a^{2} - 2 a - 7\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}+\left(a^{3}-4a-3\right){y}={x}^{3}+\left(a^{2}-a-3\right){x}^{2}+\left(-a^{3}+2a^{2}+2a-7\right){x}+a^{2}-2a-7$
8.1-a3 8.1-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $1979.862798$ 2.323193825 \( -\frac{79783}{4} a^{3} + \frac{220257}{4} a^{2} + \frac{6221}{4} a - \frac{76005}{4} \) \( \bigl[a^{2} - 3\) , \( -a^{3} + 6 a + 2\) , \( 0\) , \( -a^{3} - 2 a^{2} + 11 a + 7\) , \( -4 a^{3} + 9 a^{2} + 5 a - 1\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}={x}^{3}+\left(-a^{3}+6a+2\right){x}^{2}+\left(-a^{3}-2a^{2}+11a+7\right){x}-4a^{3}+9a^{2}+5a-1$
8.1-a4 8.1-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $123.7414248$ 2.323193825 \( -\frac{21813780719}{256} a^{3} + \frac{6026311257}{256} a^{2} + \frac{113430164197}{256} a + \frac{60280404931}{256} \) \( \bigl[a + 1\) , \( -1\) , \( a^{3} - 4 a - 3\) , \( -a^{3} + 2 a^{2} - a - 1\) , \( 2 a^{3} - 2 a^{2} - 10 a - 5\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-4a-3\right){y}={x}^{3}-{x}^{2}+\left(-a^{3}+2a^{2}-a-1\right){x}+2a^{3}-2a^{2}-10a-5$
8.1-a5 8.1-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $123.7414248$ 2.323193825 \( \frac{8273723503}{4} a^{3} + \frac{12005277671}{4} a^{2} - \frac{7160398413}{4} a - \frac{4242666811}{4} \) \( \bigl[a + 1\) , \( a^{3} - 2 a^{2} - 4 a + 2\) , \( a^{3} - 5 a - 2\) , \( -438 a^{3} + 693 a^{2} + 1778 a - 1479\) , \( 7385 a^{3} - 11737 a^{2} - 30013 a + 25063\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-5a-2\right){y}={x}^{3}+\left(a^{3}-2a^{2}-4a+2\right){x}^{2}+\left(-438a^{3}+693a^{2}+1778a-1479\right){x}+7385a^{3}-11737a^{2}-30013a+25063$
8.1-a6 8.1-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $989.9313991$ 2.323193825 \( \frac{153601}{16} a^{3} + \frac{115977}{16} a^{2} - \frac{103403}{16} a + \frac{338387}{16} \) \( \bigl[a + 1\) , \( a^{3} - 2 a^{2} - 4 a + 2\) , \( a^{3} - 5 a - 2\) , \( -28 a^{3} + 43 a^{2} + 113 a - 89\) , \( 90 a^{3} - 142 a^{2} - 367 a + 299\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-5a-2\right){y}={x}^{3}+\left(a^{3}-2a^{2}-4a+2\right){x}^{2}+\left(-28a^{3}+43a^{2}+113a-89\right){x}+90a^{3}-142a^{2}-367a+299$
8.1-b1 8.1-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.135663182$ $244.9061432$ 1.871342443 \( -\frac{21813780719}{256} a^{3} + \frac{6026311257}{256} a^{2} + \frac{113430164197}{256} a + \frac{60280404931}{256} \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{2} - 3\) , \( a^{2} - a - 2\) , \( -12 a^{3} + 37 a^{2} + a - 13\) , \( -4 a^{3} + 15 a^{2} + 3 a - 5\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{2}-a-2\right){y}={x}^{3}+\left(a^{2}-3\right){x}^{2}+\left(-12a^{3}+37a^{2}+a-13\right){x}-4a^{3}+15a^{2}+3a-5$
8.1-b2 8.1-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.033915795$ $979.6245730$ 1.871342443 \( \frac{8273723503}{4} a^{3} + \frac{12005277671}{4} a^{2} - \frac{7160398413}{4} a - \frac{4242666811}{4} \) \( \bigl[a^{3} - 4 a - 3\) , \( -a^{3} + 2 a^{2} + 4 a - 2\) , \( a^{2} - 3\) , \( -34 a^{3} + 45 a^{2} + 136 a - 87\) , \( 164 a^{3} - 264 a^{2} - 660 a + 580\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{2}-3\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+4a-2\right){x}^{2}+\left(-34a^{3}+45a^{2}+136a-87\right){x}+164a^{3}-264a^{2}-660a+580$
8.1-b3 8.1-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.067831591$ $1959.249146$ 1.871342443 \( \frac{153601}{16} a^{3} + \frac{115977}{16} a^{2} - \frac{103403}{16} a + \frac{338387}{16} \) \( \bigl[a^{3} - 4 a - 3\) , \( -a^{3} + 2 a^{2} + 4 a - 2\) , \( a^{2} - 3\) , \( -4 a^{3} + 5 a^{2} + 21 a + 3\) , \( a^{3} - 3 a^{2} + 2 a + 20\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{2}-3\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+4a-2\right){x}^{2}+\left(-4a^{3}+5a^{2}+21a+3\right){x}+a^{3}-3a^{2}+2a+20$
8.1-b4 8.1-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.135663182$ $979.6245730$ 1.871342443 \( -\frac{79783}{4} a^{3} + \frac{220257}{4} a^{2} + \frac{6221}{4} a - \frac{76005}{4} \) \( \bigl[a^{2} - 3\) , \( a^{3} - a^{2} - 3 a + 1\) , \( 0\) , \( 34 a^{3} - 9 a^{2} - 172 a - 86\) , \( -120 a^{3} + 34 a^{2} + 628 a + 336\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}={x}^{3}+\left(a^{3}-a^{2}-3a+1\right){x}^{2}+\left(34a^{3}-9a^{2}-172a-86\right){x}-120a^{3}+34a^{2}+628a+336$
8.1-b5 8.1-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.271326365$ $244.9061432$ 1.871342443 \( \frac{2414701}{2} a^{3} - \frac{3753195}{2} a^{2} - \frac{9723023}{2} a + \frac{8089111}{2} \) \( \bigl[a^{2} - 3\) , \( -a^{2} + a + 4\) , \( a + 1\) , \( -19 a^{3} + 27 a^{2} + 79 a - 51\) , \( -98 a^{3} + 154 a^{2} + 399 a - 326\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(-a^{2}+a+4\right){x}^{2}+\left(-19a^{3}+27a^{2}+79a-51\right){x}-98a^{3}+154a^{2}+399a-326$
8.1-b6 8.1-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.271326365$ $244.9061432$ 1.871342443 \( -\frac{10546970661}{2} a^{3} + \frac{29270065195}{2} a^{2} + \frac{761086087}{2} a - \frac{11870894695}{2} \) \( \bigl[a + 1\) , \( -a - 1\) , \( a^{3} - 5 a - 2\) , \( 2 a^{3} + 4 a^{2} + a\) , \( -2 a^{2} - 4 a - 2\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-5a-2\right){y}={x}^{3}+\left(-a-1\right){x}^{2}+\left(2a^{3}+4a^{2}+a\right){x}-2a^{2}-4a-2$
8.2-a1 8.2-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/8\Z$ $\mathrm{SU}(2)$ $1$ $3007.493564$ 0.882256902 \( -32793 a^{3} + 91679 a^{2} + 7795 a - 33051 \) \( \bigl[a^{2} - 3\) , \( -a^{3} + a^{2} + 3 a\) , \( a^{3} - a^{2} - 4 a\) , \( 103 a^{3} - 164 a^{2} - 420 a + 352\) , \( 893 a^{3} - 1419 a^{2} - 3629 a + 3031\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}+\left(a^{3}-a^{2}-4a\right){y}={x}^{3}+\left(-a^{3}+a^{2}+3a\right){x}^{2}+\left(103a^{3}-164a^{2}-420a+352\right){x}+893a^{3}-1419a^{2}-3629a+3031$
8.2-a2 8.2-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z\oplus\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $1503.746782$ 0.882256902 \( -623 a^{3} - 71 a^{2} + 3845 a + 5315 \) \( \bigl[a^{2} - 3\) , \( a^{3} - 2 a^{2} - 2 a + 4\) , \( 0\) , \( 4 a^{3} - 2 a^{2} - 18 a + 3\) , \( 7 a^{3} - 4 a^{2} - 32 a - 8\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}={x}^{3}+\left(a^{3}-2a^{2}-2a+4\right){x}^{2}+\left(4a^{3}-2a^{2}-18a+3\right){x}+7a^{3}-4a^{2}-32a-8$
8.2-a3 8.2-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $751.8733911$ 0.882256902 \( 1068917 a^{3} - 1698543 a^{2} - 4344039 a + 3628683 \) \( \bigl[a + 1\) , \( a^{3} - 5 a - 4\) , \( a^{3} - a^{2} - 4 a\) , \( -6 a^{3} + 4 a^{2} + 28 a + 14\) , \( 19 a^{3} - 5 a^{2} - 98 a - 53\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-a^{2}-4a\right){y}={x}^{3}+\left(a^{3}-5a-4\right){x}^{2}+\left(-6a^{3}+4a^{2}+28a+14\right){x}+19a^{3}-5a^{2}-98a-53$
8.2-a4 8.2-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $11.74802173$ 0.882256902 \( -393049013796927 a^{3} + 108582701432571 a^{2} + 2043831237525567 a + 1086158495384435 \) \( \bigl[a + 1\) , \( -a^{2} + 4\) , \( a^{3} - 5 a - 2\) , \( 15 a^{3} + 52 a^{2} - 128 a - 307\) , \( 228 a^{3} + 337 a^{2} - 1532 a - 2508\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-5a-2\right){y}={x}^{3}+\left(-a^{2}+4\right){x}^{2}+\left(15a^{3}+52a^{2}-128a-307\right){x}+228a^{3}+337a^{2}-1532a-2508$
8.2-a5 8.2-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $187.9683477$ 0.882256902 \( -7651323 a^{3} + 2646009 a^{2} + 40902633 a + 21644051 \) \( \bigl[a + 1\) , \( -a^{2} + 4\) , \( a^{3} - 5 a - 2\) , \( 2 a^{2} - 3 a - 12\) , \( 6 a^{3} + 7 a^{2} - 39 a - 59\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-5a-2\right){y}={x}^{3}+\left(-a^{2}+4\right){x}^{2}+\left(2a^{2}-3a-12\right){x}+6a^{3}+7a^{2}-39a-59$
8.2-a6 8.2-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $11.74802173$ 0.882256902 \( 1871271216191 a^{3} + 3084029329157 a^{2} - 1246733719103 a - 1422504331683 \) \( \bigl[a + 1\) , \( -a^{2} + 4\) , \( a^{3} - 5 a - 2\) , \( 5 a^{3} - 8 a^{2} - 18 a + 3\) , \( 4 a^{3} + 7 a^{2} - 20 a - 74\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{3}-5a-2\right){y}={x}^{3}+\left(-a^{2}+4\right){x}^{2}+\left(5a^{3}-8a^{2}-18a+3\right){x}+4a^{3}+7a^{2}-20a-74$
8.2-b1 8.2-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.172750202$ $915.7167659$ 2.969956322 \( 1068917 a^{3} - 1698543 a^{2} - 4344039 a + 3628683 \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{2} - 4\) , \( a + 1\) , \( -11 a^{3} + 30 a^{2} + 6 a - 5\) , \( 7 a^{3} - 17 a^{2} + 2 a + 7\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(a^{2}-4\right){x}^{2}+\left(-11a^{3}+30a^{2}+6a-5\right){x}+7a^{3}-17a^{2}+2a+7$
8.2-b2 8.2-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.382001617$ $57.23229787$ 2.969956322 \( -393049013796927 a^{3} + 108582701432571 a^{2} + 2043831237525567 a + 1086158495384435 \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{3} - 5 a - 2\) , \( a^{3} - a^{2} - 3 a + 1\) , \( -654 a^{3} + 1043 a^{2} + 2660 a - 2235\) , \( -14751 a^{3} + 23453 a^{2} + 59929 a - 50085\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{3}-a^{2}-3a+1\right){y}={x}^{3}+\left(a^{3}-5a-2\right){x}^{2}+\left(-654a^{3}+1043a^{2}+2660a-2235\right){x}-14751a^{3}+23453a^{2}+59929a-50085$
8.2-b3 8.2-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.691000808$ $915.7167659$ 2.969956322 \( -7651323 a^{3} + 2646009 a^{2} + 40902633 a + 21644051 \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{3} - 5 a - 2\) , \( a^{3} - a^{2} - 3 a + 1\) , \( -39 a^{3} + 63 a^{2} + 165 a - 140\) , \( -236 a^{3} + 379 a^{2} + 958 a - 803\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{3}-a^{2}-3a+1\right){y}={x}^{3}+\left(a^{3}-5a-2\right){x}^{2}+\left(-39a^{3}+63a^{2}+165a-140\right){x}-236a^{3}+379a^{2}+958a-803$
8.2-b4 8.2-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/4\Z$ $\mathrm{SU}(2)$ $1.382001617$ $228.9291914$ 2.969956322 \( 1871271216191 a^{3} + 3084029329157 a^{2} - 1246733719103 a - 1422504331683 \) \( \bigl[a^{3} - 4 a - 3\) , \( 0\) , \( a + 1\) , \( 137 a^{3} - 39 a^{2} - 713 a - 378\) , \( 2176 a^{3} - 601 a^{2} - 11316 a - 6015\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(137a^{3}-39a^{2}-713a-378\right){x}+2176a^{3}-601a^{2}-11316a-6015$
8.2-b5 8.2-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.172750202$ $915.7167659$ 2.969956322 \( -32793 a^{3} + 91679 a^{2} + 7795 a - 33051 \) \( \bigl[a^{2} - 3\) , \( -a^{3} + a^{2} + 5 a\) , \( a + 1\) , \( 5 a^{3} - 11 a^{2} - 19 a + 29\) , \( 12 a^{3} - 23 a^{2} - 51 a + 49\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}+\left(a+1\right){y}={x}^{3}+\left(-a^{3}+a^{2}+5a\right){x}^{2}+\left(5a^{3}-11a^{2}-19a+29\right){x}+12a^{3}-23a^{2}-51a+49$
8.2-b6 8.2-b 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.345500404$ $1831.433531$ 2.969956322 \( -623 a^{3} - 71 a^{2} + 3845 a + 5315 \) \( \bigl[a^{2} - 3\) , \( -a^{2} + 4\) , \( a^{2} - 3\) , \( -2 a^{2} + 6\) , \( -a^{2} + 3\bigr] \) ${y}^2+\left(a^{2}-3\right){x}{y}+\left(a^{2}-3\right){y}={x}^{3}+\left(-a^{2}+4\right){x}^{2}+\left(-2a^{2}+6\right){x}-a^{2}+3$
8.3-a1 8.3-a 4.4.11348.1 \( 2^{3} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $148.7727753$ 2.793147027 \( \frac{20757}{2} a^{3} - \frac{58115}{2} a^{2} + 154 a + 12302 \) \( \bigl[a\) , \( a^{3} - 2 a^{2} - 4 a + 3\) , \( a^{3} - a^{2} - 4 a\) , \( -19 a^{3} + 3 a^{2} + 101 a + 62\) , \( -61 a^{3} + 16 a^{2} + 318 a + 172\bigr] \) ${y}^2+a{x}{y}+\left(a^{3}-a^{2}-4a\right){y}={x}^{3}+\left(a^{3}-2a^{2}-4a+3\right){x}^{2}+\left(-19a^{3}+3a^{2}+101a+62\right){x}-61a^{3}+16a^{2}+318a+172$
8.3-b1 8.3-b 4.4.11348.1 \( 2^{3} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.011372231$ $653.0953744$ 1.673300328 \( \frac{20757}{2} a^{3} - \frac{58115}{2} a^{2} + 154 a + 12302 \) \( \bigl[a^{2} - 2\) , \( a^{2} - 2 a - 4\) , \( 0\) , \( -a^{3} + 7 a + 5\) , \( a^{3} - 5 a - 3\bigr] \) ${y}^2+\left(a^{2}-2\right){x}{y}={x}^{3}+\left(a^{2}-2a-4\right){x}^{2}+\left(-a^{3}+7a+5\right){x}+a^{3}-5a-3$
8.4-a1 8.4-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $693.6737859$ 3.255859260 \( 89104 a^{3} - 140304 a^{2} - 365648 a + 304864 \) \( \bigl[a^{3} - a^{2} - 4 a\) , \( -a^{3} + a^{2} + 5 a + 1\) , \( a^{3} - 4 a - 2\) , \( -3 a^{3} + 11 a + 3\) , \( -2 a^{3} + 8 a + 3\bigr] \) ${y}^2+\left(a^{3}-a^{2}-4a\right){x}{y}+\left(a^{3}-4a-2\right){y}={x}^{3}+\left(-a^{3}+a^{2}+5a+1\right){x}^{2}+\left(-3a^{3}+11a+3\right){x}-2a^{3}+8a+3$
8.4-a2 8.4-a 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $693.6737859$ 3.255859260 \( -368 a^{3} - 240 a^{2} + 2512 a + 3248 \) \( \bigl[0\) , \( a\) , \( a\) , \( -4 a^{3} + 7 a^{2} + 16 a - 15\) , \( -1\bigr] \) ${y}^2+a{y}={x}^{3}+a{x}^{2}+\left(-4a^{3}+7a^{2}+16a-15\right){x}-1$
8.4-b1 8.4-b 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $260.4035341$ 1.222242032 \( 262208 a^{3} + 1023968 a^{2} - 262464 a - 445808 \) \( \bigl[a^{3} - a^{2} - 4 a\) , \( -a^{3} + 4 a + 2\) , \( a^{2} - 2\) , \( a^{3} - a^{2} - 2 a + 1\) , \( 65 a^{3} - 20 a^{2} - 337 a - 179\bigr] \) ${y}^2+\left(a^{3}-a^{2}-4a\right){x}{y}+\left(a^{2}-2\right){y}={x}^{3}+\left(-a^{3}+4a+2\right){x}^{2}+\left(a^{3}-a^{2}-2a+1\right){x}+65a^{3}-20a^{2}-337a-179$
8.4-b2 8.4-b 4.4.11348.1 \( 2^{3} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $260.4035341$ 1.222242032 \( -14336 a^{3} + 2048 a^{2} + 75776 a + 47104 \) \( \bigl[0\) , \( -a^{3} + 2 a^{2} + 4 a - 2\) , \( a^{3} - a^{2} - 3 a\) , \( 2 a^{3} - 4 a^{2} - 3 a + 4\) , \( 5 a^{3} - 14 a^{2} + 4\bigr] \) ${y}^2+\left(a^{3}-a^{2}-3a\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+4a-2\right){x}^{2}+\left(2a^{3}-4a^{2}-3a+4\right){x}+5a^{3}-14a^{2}+4$
8.4-c1 8.4-c 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.034941082$ $1537.735206$ 2.017521841 \( 262208 a^{3} + 1023968 a^{2} - 262464 a - 445808 \) \( \bigl[a^{2} - a - 2\) , \( a^{3} - 2 a^{2} - 2 a + 2\) , \( a\) , \( 5 a^{3} - 14 a^{2} - a + 7\) , \( -25 a^{3} + 70 a^{2} - 29\bigr] \) ${y}^2+\left(a^{2}-a-2\right){x}{y}+a{y}={x}^{3}+\left(a^{3}-2a^{2}-2a+2\right){x}^{2}+\left(5a^{3}-14a^{2}-a+7\right){x}-25a^{3}+70a^{2}-29$
8.4-c2 8.4-c 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.069882165$ $1537.735206$ 2.017521841 \( -14336 a^{3} + 2048 a^{2} + 75776 a + 47104 \) \( \bigl[0\) , \( a^{3} - 6 a - 2\) , \( a\) , \( -a\) , \( 0\bigr] \) ${y}^2+a{y}={x}^{3}+\left(a^{3}-6a-2\right){x}^{2}-a{x}$
8.4-d1 8.4-d 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.070674530$ $925.5227000$ 1.228062135 \( 89104 a^{3} - 140304 a^{2} - 365648 a + 304864 \) \( \bigl[a^{2} - a - 2\) , \( -a^{3} + a^{2} + 3 a + 1\) , \( a\) , \( -7 a^{3} - 3 a^{2} + 10 a + 5\) , \( -7 a^{3} - 7 a^{2} + 7 a + 5\bigr] \) ${y}^2+\left(a^{2}-a-2\right){x}{y}+a{y}={x}^{3}+\left(-a^{3}+a^{2}+3a+1\right){x}^{2}+\left(-7a^{3}-3a^{2}+10a+5\right){x}-7a^{3}-7a^{2}+7a+5$
8.4-d2 8.4-d 4.4.11348.1 \( 2^{3} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.035337265$ $925.5227000$ 1.228062135 \( -368 a^{3} - 240 a^{2} + 2512 a + 3248 \) \( \bigl[0\) , \( -a^{3} + 2 a^{2} + 2 a - 2\) , \( a^{3} - a^{2} - 3 a\) , \( -64 a^{3} + 103 a^{2} + 256 a - 215\) , \( -11 a^{3} + 18 a^{2} + 42 a - 37\bigr] \) ${y}^2+\left(a^{3}-a^{2}-3a\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+2a-2\right){x}^{2}+\left(-64a^{3}+103a^{2}+256a-215\right){x}-11a^{3}+18a^{2}+42a-37$
14.1-a1 14.1-a 4.4.11348.1 \( 2 \cdot 7 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $2.078912103$ $7.599853298$ 1.779766055 \( -\frac{4344977037336450055}{126324651851776} a^{3} - \frac{20805037680357238655}{126324651851776} a^{2} - \frac{4483998603304559635}{126324651851776} a + \frac{16007017427212152571}{126324651851776} \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{3} - 6 a - 2\) , \( a^{2} - a - 3\) , \( -123 a^{3} + 188 a^{2} + 509 a - 379\) , \( -1145 a^{3} + 1812 a^{2} + 4665 a - 3856\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{2}-a-3\right){y}={x}^{3}+\left(a^{3}-6a-2\right){x}^{2}+\left(-123a^{3}+188a^{2}+509a-379\right){x}-1145a^{3}+1812a^{2}+4665a-3856$
14.1-a2 14.1-a 4.4.11348.1 \( 2 \cdot 7 \) $1$ $\Z/6\Z$ $\mathrm{SU}(2)$ $0.692970701$ $615.5881171$ 1.779766055 \( \frac{421428745}{50176} a^{3} - \frac{514332911}{50176} a^{2} - \frac{1855299779}{50176} a + \frac{726482475}{50176} \) \( \bigl[a^{3} - 4 a - 3\) , \( a^{3} - 6 a - 2\) , \( a^{2} - a - 3\) , \( -8 a^{3} + 18 a^{2} + 29 a - 44\) , \( 23 a^{3} - 36 a^{2} - 92 a + 80\bigr] \) ${y}^2+\left(a^{3}-4a-3\right){x}{y}+\left(a^{2}-a-3\right){y}={x}^{3}+\left(a^{3}-6a-2\right){x}^{2}+\left(-8a^{3}+18a^{2}+29a-44\right){x}+23a^{3}-36a^{2}-92a+80$
14.1-a3 14.1-a 4.4.11348.1 \( 2 \cdot 7 \) $1$ $\Z/6\Z$ $\mathrm{SU}(2)$ $1.385941402$ $1231.176234$ 1.779766055 \( -\frac{8223137845}{224} a^{3} + \frac{2272095331}{224} a^{2} + \frac{42760080679}{224} a + \frac{22723964561}{224} \) \( \bigl[a^{3} - a^{2} - 3 a + 1\) , \( -a^{3} + 2 a^{2} + 4 a - 4\) , \( a^{3} - 5 a - 3\) , \( 5 a^{3} - 3 a^{2} - 26 a - 7\) , \( -7 a^{3} - a^{2} + 27 a + 12\bigr] \) ${y}^2+\left(a^{3}-a^{2}-3a+1\right){x}{y}+\left(a^{3}-5a-3\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+4a-4\right){x}^{2}+\left(5a^{3}-3a^{2}-26a-7\right){x}-7a^{3}-a^{2}+27a+12$
14.1-a4 14.1-a 4.4.11348.1 \( 2 \cdot 7 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $4.157824207$ $15.19970659$ 1.779766055 \( \frac{1242409545080523731}{11239424} a^{3} + \frac{2110913976994909867}{11239424} a^{2} - \frac{836271356526981681}{11239424} a - \frac{971452564716753111}{11239424} \) \( \bigl[a^{3} - a^{2} - 3 a + 1\) , \( -a^{3} + 2 a^{2} + 4 a - 4\) , \( a^{3} - 5 a - 3\) , \( -40 a^{3} - 88 a^{2} - a + 28\) , \( -800 a^{3} - 1336 a^{2} + 534 a + 612\bigr] \) ${y}^2+\left(a^{3}-a^{2}-3a+1\right){x}{y}+\left(a^{3}-5a-3\right){y}={x}^{3}+\left(-a^{3}+2a^{2}+4a-4\right){x}^{2}+\left(-40a^{3}-88a^{2}-a+28\right){x}-800a^{3}-1336a^{2}+534a+612$
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  *The rank, regulator and analytic order of Ш are not known for all curves in the database; curves for which these are unknown will not appear in searches specifying one of these quantities.