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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
5.1-a1 5.1-a 3.3.1396.1 \( 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $12.05557311$ 1.290640067 \( \frac{2400694423446565892}{152587890625} a^{2} - \frac{8490114795873851837}{152587890625} a + \frac{4752340914414381276}{152587890625} \) \( \bigl[a^{2} + a - 5\) , \( 0\) , \( a^{2} - 5\) , \( -5203 a^{2} + 18404 a - 10262\) , \( -602834 a^{2} + 2131983 a - 1188249\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-5203a^{2}+18404a-10262\right){x}-602834a^{2}+2131983a-1188249$
5.1-a2 5.1-a 3.3.1396.1 \( 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $48.22229246$ 1.290640067 \( -\frac{28451318558610513919684}{625} a^{2} + \frac{8728149441979146219949}{625} a + \frac{205209802475645542893748}{625} \) \( \bigl[a^{2} + a - 5\) , \( 0\) , \( a^{2} - 5\) , \( -973 a^{2} + 3454 a - 1932\) , \( 37404 a^{2} - 132263 a + 73709\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-973a^{2}+3454a-1932\right){x}+37404a^{2}-132263a+73709$
5.1-a3 5.1-a 3.3.1396.1 \( 5 \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $96.44458492$ 1.290640067 \( -\frac{1000097191662047}{390625} a^{2} + \frac{306803558641792}{390625} a + \frac{7213368964309384}{390625} \) \( \bigl[a^{2} + a - 5\) , \( 0\) , \( a^{2} - 5\) , \( -328 a^{2} + 1169 a - 657\) , \( -9155 a^{2} + 32388 a - 18056\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-328a^{2}+1169a-657\right){x}-9155a^{2}+32388a-18056$
5.1-a4 5.1-a 3.3.1396.1 \( 5 \) 0 $\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $192.8891698$ 1.290640067 \( \frac{45962184}{625} a^{2} + \frac{59059426}{625} a - \frac{145904373}{625} \) \( \bigl[a^{2} + a - 5\) , \( 0\) , \( a^{2} - 5\) , \( 17 a^{2} - 51 a + 23\) , \( -580 a^{2} + 2062 a - 1154\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(17a^{2}-51a+23\right){x}-580a^{2}+2062a-1154$
5.1-b1 5.1-b 3.3.1396.1 \( 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $88.82987098$ 2.377476989 \( \frac{38440684463}{625} a^{2} - \frac{149920969943}{625} a + \frac{115496111289}{625} \) \( \bigl[a\) , \( a^{2} + a - 6\) , \( 1\) , \( -21 a^{2} + 93 a - 80\) , \( 222 a^{2} - 768 a + 401\bigr] \) ${y}^2+a{x}{y}+{y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-21a^{2}+93a-80\right){x}+222a^{2}-768a+401$
5.1-b2 5.1-b 3.3.1396.1 \( 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $177.6597419$ 2.377476989 \( \frac{289149}{25} a^{2} + \frac{746086}{25} a - \frac{811578}{25} \) \( \bigl[a\) , \( a^{2} + a - 6\) , \( 1\) , \( -a^{2} + 8 a\) , \( 5 a^{2} - 11 a + 3\bigr] \) ${y}^2+a{x}{y}+{y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-a^{2}+8a\right){x}+5a^{2}-11a+3$
5.1-c1 5.1-c 3.3.1396.1 \( 5 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.983978448$ $75.19125212$ 2.970307785 \( \frac{38440684463}{625} a^{2} - \frac{149920969943}{625} a + \frac{115496111289}{625} \) \( \bigl[1\) , \( a^{2} + a - 6\) , \( a\) , \( -11 a^{2} + 38 a - 15\) , \( -49 a^{2} + 173 a - 99\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-11a^{2}+38a-15\right){x}-49a^{2}+173a-99$
5.1-c2 5.1-c 3.3.1396.1 \( 5 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.491989224$ $150.3825042$ 2.970307785 \( \frac{289149}{25} a^{2} + \frac{746086}{25} a - \frac{811578}{25} \) \( \bigl[1\) , \( a^{2} + a - 6\) , \( a\) , \( -a^{2} + 3 a + 5\) , \( 2 a - 5\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-a^{2}+3a+5\right){x}+2a-5$
5.1-d1 5.1-d 3.3.1396.1 \( 5 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.921833868$ $19.84650192$ 0.734488804 \( \frac{2400694423446565892}{152587890625} a^{2} - \frac{8490114795873851837}{152587890625} a + \frac{4752340914414381276}{152587890625} \) \( \bigl[1\) , \( a^{2} - a - 5\) , \( 1\) , \( -12754 a^{2} + 45104 a - 25134\) , \( 2292968 a^{2} - 8109378 a + 4519712\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(a^{2}-a-5\right){x}^{2}+\left(-12754a^{2}+45104a-25134\right){x}+2292968a^{2}-8109378a+4519712$
5.1-d2 5.1-d 3.3.1396.1 \( 5 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $3.687335472$ $4.961625482$ 0.734488804 \( -\frac{28451318558610513919684}{625} a^{2} + \frac{8728149441979146219949}{625} a + \frac{205209802475645542893748}{625} \) \( \bigl[1\) , \( a^{2} - a - 5\) , \( 1\) , \( -2384 a^{2} + 8454 a - 4764\) , \( -147228 a^{2} + 520726 a - 290304\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(a^{2}-a-5\right){x}^{2}+\left(-2384a^{2}+8454a-4764\right){x}-147228a^{2}+520726a-290304$
5.1-d3 5.1-d 3.3.1396.1 \( 5 \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1.843667736$ $39.69300385$ 0.734488804 \( -\frac{1000097191662047}{390625} a^{2} + \frac{306803558641792}{390625} a + \frac{7213368964309384}{390625} \) \( \bigl[1\) , \( a^{2} - a - 5\) , \( 1\) , \( -809 a^{2} + 2859 a - 1589\) , \( 33868 a^{2} - 119778 a + 66756\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(a^{2}-a-5\right){x}^{2}+\left(-809a^{2}+2859a-1589\right){x}+33868a^{2}-119778a+66756$
5.1-d4 5.1-d 3.3.1396.1 \( 5 \) $1$ $\Z/4\Z$ $\mathrm{SU}(2)$ $0.921833868$ $79.38600771$ 0.734488804 \( \frac{45962184}{625} a^{2} + \frac{59059426}{625} a - \frac{145904373}{625} \) \( \bigl[1\) , \( a^{2} - a - 5\) , \( 1\) , \( 36 a^{2} - 131 a + 81\) , \( 2292 a^{2} - 8104 a + 4512\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(a^{2}-a-5\right){x}^{2}+\left(36a^{2}-131a+81\right){x}+2292a^{2}-8104a+4512$
10.1-a1 10.1-a 3.3.1396.1 \( 2 \cdot 5 \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $24.29552432$ 1.300509600 \( -\frac{902609}{200} a^{2} - \frac{883201}{100} a + \frac{327961}{40} \) \( \bigl[a^{2} + a - 5\) , \( 1\) , \( a^{2} + a - 4\) , \( 26 a^{2} - 6 a - 182\) , \( 613 a^{2} - 184 a - 4411\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+{x}^{2}+\left(26a^{2}-6a-182\right){x}+613a^{2}-184a-4411$
10.1-b1 10.1-b 3.3.1396.1 \( 2 \cdot 5 \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $12.00741419$ 1.928226437 \( \frac{112128657050479}{500000} a^{2} - \frac{34445868993263}{500000} a - \frac{161773421560101}{100000} \) \( \bigl[a^{2} + a - 5\) , \( 1\) , \( a^{2} - 5\) , \( 11 a^{2} - 2 a - 63\) , \( -18 a^{2} + 38 a + 60\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+{x}^{2}+\left(11a^{2}-2a-63\right){x}-18a^{2}+38a+60$
10.1-b2 10.1-b 3.3.1396.1 \( 2 \cdot 5 \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $36.02224259$ 1.928226437 \( -\frac{9930181}{50} a^{2} + \frac{70278239}{100} a - \frac{7846297}{20} \) \( \bigl[a^{2} + a - 5\) , \( 1\) , \( a^{2} - 5\) , \( a^{2} + 8 a - 8\) , \( 16 a - 13\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+{x}^{2}+\left(a^{2}+8a-8\right){x}+16a-13$
10.1-c1 10.1-c 3.3.1396.1 \( 2 \cdot 5 \) $1$ $\Z/3\Z$ $\mathrm{SU}(2)$ $1.727892073$ $76.86389658$ 2.369763691 \( -\frac{9930181}{50} a^{2} + \frac{70278239}{100} a - \frac{7846297}{20} \) \( \bigl[a^{2} - 4\) , \( a^{2} - 6\) , \( 0\) , \( a^{2} + 5 a - 2\) , \( a^{2} - 1\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(a^{2}+5a-2\right){x}+a^{2}-1$
10.1-c2 10.1-c 3.3.1396.1 \( 2 \cdot 5 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $5.183676219$ $2.846810984$ 2.369763691 \( \frac{112128657050479}{500000} a^{2} - \frac{34445868993263}{500000} a - \frac{161773421560101}{100000} \) \( \bigl[a^{2} - 4\) , \( a^{2} - 6\) , \( 0\) , \( -29 a^{2} - 55 a + 53\) , \( -279 a^{2} - 528 a + 500\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(-29a^{2}-55a+53\right){x}-279a^{2}-528a+500$
10.1-d1 10.1-d 3.3.1396.1 \( 2 \cdot 5 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.132315019$ $52.88248349$ 1.123646046 \( -\frac{902609}{200} a^{2} - \frac{883201}{100} a + \frac{327961}{40} \) \( \bigl[a^{2} - 4\) , \( a^{2} - 6\) , \( a^{2} + a - 4\) , \( -2 a^{2} - 6 a - 1\) , \( -14 a^{2} - 23 a + 32\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(-2a^{2}-6a-1\right){x}-14a^{2}-23a+32$
10.2-a1 10.2-a 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $132.5634432$ 3.547979215 \( -\frac{5055411487375307}{10} a^{2} + \frac{775436591104079}{5} a + \frac{7292596936246757}{2} \) \( \bigl[a\) , \( a\) , \( a^{2} - 4\) , \( -5 a^{2} + 14 a - 8\) , \( -14 a^{2} + 48 a - 29\bigr] \) ${y}^2+a{x}{y}+\left(a^{2}-4\right){y}={x}^{3}+a{x}^{2}+\left(-5a^{2}+14a-8\right){x}-14a^{2}+48a-29$
10.2-a2 10.2-a 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $132.5634432$ 3.547979215 \( \frac{426636057}{50} a^{2} - \frac{130789183}{50} a - \frac{307694898}{5} \) \( \bigl[a\) , \( a\) , \( a^{2} - 4\) , \( -a + 2\) , \( -a^{2} + 2 a - 4\bigr] \) ${y}^2+a{x}{y}+\left(a^{2}-4\right){y}={x}^{3}+a{x}^{2}+\left(-a+2\right){x}-a^{2}+2a-4$
10.2-b1 10.2-b 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $75.24422017$ 4.027730762 \( \frac{63521587627689}{39062500} a^{2} - \frac{5442805749933}{19531250} a - \frac{87257374729027}{7812500} \) \( \bigl[a^{2} - 4\) , \( a^{2} - 5\) , \( a^{2} - 5\) , \( -4 a^{2} - 14 a + 3\) , \( 9 a^{2} + 14 a - 18\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(a^{2}-5\right){x}^{2}+\left(-4a^{2}-14a+3\right){x}+9a^{2}+14a-18$
10.2-b2 10.2-b 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $75.24422017$ 4.027730762 \( -\frac{50002885222410754}{3125} a^{2} + \frac{32311366451276077}{6250} a + \frac{145089616528311519}{1250} \) \( \bigl[a^{2} - 4\) , \( a^{2} - 5\) , \( a^{2} - 5\) , \( -109 a^{2} - 194 a + 158\) , \( 1254 a^{2} + 2360 a - 2195\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(a^{2}-5\right){x}^{2}+\left(-109a^{2}-194a+158\right){x}+1254a^{2}+2360a-2195$
10.2-c1 10.2-c 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.46359734$ 0.881276160 \( -\frac{50002885222410754}{3125} a^{2} + \frac{32311366451276077}{6250} a + \frac{145089616528311519}{1250} \) \( \bigl[a^{2} + a - 5\) , \( a^{2} - 4\) , \( a^{2} + a - 5\) , \( 172 a^{2} - 24 a - 1294\) , \( 2383 a^{2} - 746 a - 17104\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}+a-5\right){y}={x}^{3}+\left(a^{2}-4\right){x}^{2}+\left(172a^{2}-24a-1294\right){x}+2383a^{2}-746a-17104$
10.2-c2 10.2-c 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.46359734$ 0.881276160 \( \frac{63521587627689}{39062500} a^{2} - \frac{5442805749933}{19531250} a - \frac{87257374729027}{7812500} \) \( \bigl[a^{2} + a - 5\) , \( a^{2} - 4\) , \( a^{2} + a - 5\) , \( 17 a^{2} - 4 a - 89\) , \( 47 a^{2} - 12 a - 278\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}+a-5\right){y}={x}^{3}+\left(a^{2}-4\right){x}^{2}+\left(17a^{2}-4a-89\right){x}+47a^{2}-12a-278$
10.2-d1 10.2-d 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $38.65677423$ 1.034624841 \( -\frac{5055411487375307}{10} a^{2} + \frac{775436591104079}{5} a + \frac{7292596936246757}{2} \) \( \bigl[a^{2} - 4\) , \( a^{2} - a - 6\) , \( a^{2} + a - 4\) , \( 6 a^{2} + 31 a - 147\) , \( 97 a^{2} - 167 a - 320\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+\left(a^{2}-a-6\right){x}^{2}+\left(6a^{2}+31a-147\right){x}+97a^{2}-167a-320$
10.2-d2 10.2-d 3.3.1396.1 \( 2 \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $38.65677423$ 1.034624841 \( \frac{426636057}{50} a^{2} - \frac{130789183}{50} a - \frac{307694898}{5} \) \( \bigl[a^{2} - 4\) , \( a^{2} - a - 6\) , \( a^{2} + a - 4\) , \( a^{2} - 4 a - 7\) , \( 3 a^{2} - 14 a + 5\bigr] \) ${y}^2+\left(a^{2}-4\right){x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+\left(a^{2}-a-6\right){x}^{2}+\left(a^{2}-4a-7\right){x}+3a^{2}-14a+5$
10.3-a1 10.3-a 3.3.1396.1 \( 2 \cdot 5 \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $22.04642691$ 3.540354529 \( -\frac{768520493}{781250} a^{2} - \frac{1454212727}{781250} a + \frac{457945371}{781250} \) \( \bigl[1\) , \( a^{2} + a - 6\) , \( a + 1\) , \( -97 a^{2} - 179 a + 172\) , \( -1512 a^{2} - 2788 a + 2656\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-97a^{2}-179a+172\right){x}-1512a^{2}-2788a+2656$
10.3-b1 10.3-b 3.3.1396.1 \( 2 \cdot 5 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.095424557$ $22.32850648$ 4.105911795 \( -\frac{768520493}{781250} a^{2} - \frac{1454212727}{781250} a + \frac{457945371}{781250} \) \( \bigl[a\) , \( a^{2} + a - 6\) , \( a^{2} + a - 4\) , \( 38 a^{2} - 12 a - 275\) , \( -457 a^{2} + 135 a + 3283\bigr] \) ${y}^2+a{x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(38a^{2}-12a-275\right){x}-457a^{2}+135a+3283$
11.1-a1 11.1-a 3.3.1396.1 \( 11 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $357.4921120$ 2.392014253 \( \frac{12288}{11} a^{2} - \frac{28672}{11} a + \frac{12288}{11} \) \( \bigl[0\) , \( -a^{2} + 6\) , \( 1\) , \( -2 a^{2} + 3 a + 9\) , \( -3 a + 8\bigr] \) ${y}^2+{y}={x}^{3}+\left(-a^{2}+6\right){x}^{2}+\left(-2a^{2}+3a+9\right){x}-3a+8$
11.1-a2 11.1-a 3.3.1396.1 \( 11 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $178.7460560$ 2.392014253 \( -\frac{7061504}{121} a^{2} + \frac{2085088}{121} a + \frac{51290768}{121} \) \( \bigl[a + 1\) , \( -a^{2} + 5\) , \( a^{2} - 4\) , \( 751261 a^{2} + 1384881 a - 1321049\) , \( -680956504 a^{2} - 1255278274 a + 1197431649\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{2}-4\right){y}={x}^{3}+\left(-a^{2}+5\right){x}^{2}+\left(751261a^{2}+1384881a-1321049\right){x}-680956504a^{2}-1255278274a+1197431649$
11.1-b1 11.1-b 3.3.1396.1 \( 11 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.117915434$ $114.3151844$ 5.130520457 \( -\frac{7061504}{121} a^{2} + \frac{2085088}{121} a + \frac{51290768}{121} \) \( \bigl[a^{2} + a - 4\) , \( -a + 1\) , \( 1\) , \( 104105778 a^{2} + 191909058 a - 183065365\) , \( -1110715033559 a^{2} - 2047497077012 a + 1953142858336\bigr] \) ${y}^2+\left(a^{2}+a-4\right){x}{y}+{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(104105778a^{2}+191909058a-183065365\right){x}-1110715033559a^{2}-2047497077012a+1953142858336$
11.1-b2 11.1-b 3.3.1396.1 \( 11 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $2.235830869$ $114.3151844$ 5.130520457 \( \frac{12288}{11} a^{2} - \frac{28672}{11} a + \frac{12288}{11} \) \( \bigl[0\) , \( a^{2} - a - 6\) , \( a\) , \( -3 a^{2} - a + 15\) , \( -9\bigr] \) ${y}^2+a{y}={x}^{3}+\left(a^{2}-a-6\right){x}^{2}+\left(-3a^{2}-a+15\right){x}-9$
20.3-a1 20.3-a 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $49.45815632$ 1.985575808 \( \frac{18144}{25} a^{2} + \frac{72864}{25} a - \frac{6592}{5} \) \( \bigl[a^{2} - 5\) , \( a - 1\) , \( 0\) , \( -3 a^{2} - 4 a + 12\) , \( -9 a^{2} - 15 a + 19\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(-3a^{2}-4a+12\right){x}-9a^{2}-15a+19$
20.3-a2 20.3-a 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.48605210$ 1.985575808 \( \frac{2378736270617184}{15625} a^{2} + \frac{4384972713907104}{15625} a - \frac{836580531349312}{3125} \) \( \bigl[a^{2} - 5\) , \( a - 1\) , \( 0\) , \( -203 a^{2} - 374 a + 362\) , \( -4073 a^{2} - 7507 a + 7163\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(-203a^{2}-374a+362\right){x}-4073a^{2}-7507a+7163$
20.3-a3 20.3-a 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $49.45815632$ 1.985575808 \( \frac{809637436}{625} a^{2} - \frac{2864159384}{625} a + \frac{319628652}{125} \) \( \bigl[a + 1\) , \( a^{2} - 6\) , \( a^{2} - 5\) , \( 4209 a^{2} + 7762 a - 7392\) , \( -1506114 a^{2} - 2776380 a + 2648427\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(4209a^{2}+7762a-7392\right){x}-1506114a^{2}-2776380a+2648427$
20.3-a4 20.3-a 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $16.48605210$ 1.985575808 \( -\frac{238031359060300644}{244140625} a^{2} + \frac{72961758716982136}{244140625} a + \frac{343337563102814092}{48828125} \) \( \bigl[a + 1\) , \( a^{2} - 6\) , \( a^{2} - 5\) , \( -337566 a^{2} - 622268 a + 593603\) , \( -257569576 a^{2} - 474804914 a + 452924609\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(-337566a^{2}-622268a+593603\right){x}-257569576a^{2}-474804914a+452924609$
20.3-b1 20.3-b 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $293.6828157$ 1.965060088 \( \frac{171968}{5} a^{2} - \frac{616192}{5} a + 74304 \) \( \bigl[a^{2} - 5\) , \( a^{2} - a - 6\) , \( a^{2} + a - 4\) , \( -26804477987 a^{2} - 49411495005 a + 47134479291\) , \( 1968555136891523 a^{2} + 3628843372909587 a - 3461616427878475\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+\left(a^{2}-a-6\right){x}^{2}+\left(-26804477987a^{2}-49411495005a+47134479291\right){x}+1968555136891523a^{2}+3628843372909587a-3461616427878475$
20.3-b2 20.3-b 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $146.8414078$ 1.965060088 \( \frac{2130144}{25} a^{2} + \frac{3932064}{25} a - \frac{747712}{5} \) \( \bigl[a^{2} - 5\) , \( -a^{2} - a + 5\) , \( a^{2} - 5\) , \( -3 a^{2} + 19\) , \( -3 a^{2} + 2 a + 24\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-a^{2}-a+5\right){x}^{2}+\left(-3a^{2}+19\right){x}-3a^{2}+2a+24$
20.3-c1 20.3-c 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $93.02599443$ 1.244891829 \( \frac{2130144}{25} a^{2} + \frac{3932064}{25} a - \frac{747712}{5} \) \( \bigl[a^{2} - 5\) , \( a^{2} - 6\) , \( 0\) , \( -9 a^{2} + 4 a + 68\) , \( -50 a^{2} + 16 a + 362\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(-9a^{2}+4a+68\right){x}-50a^{2}+16a+362$
20.3-c2 20.3-c 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $186.0519888$ 1.244891829 \( \frac{171968}{5} a^{2} - \frac{616192}{5} a + 74304 \) \( \bigl[a^{2} - 5\) , \( -a^{2} + a + 6\) , \( a^{2} + a - 4\) , \( -193430392 a^{2} - 356570442 a + 340138748\) , \( 1206574057641 a^{2} + 2224204032172 a - 2121706677669\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}+\left(a^{2}+a-4\right){y}={x}^{3}+\left(-a^{2}+a+6\right){x}^{2}+\left(-193430392a^{2}-356570442a+340138748\right){x}+1206574057641a^{2}+2224204032172a-2121706677669$
20.3-d1 20.3-d 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $4.110077794$ 0.495016695 \( \frac{2378736270617184}{15625} a^{2} + \frac{4384972713907104}{15625} a - \frac{836580531349312}{3125} \) \( \bigl[a^{2} - 5\) , \( 0\) , \( a^{2} - 5\) , \( 19 a^{2} - 10 a - 145\) , \( 125 a^{2} - 46 a - 922\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(19a^{2}-10a-145\right){x}+125a^{2}-46a-922$
20.3-d2 20.3-d 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/6\Z$ $\mathrm{SU}(2)$ $1$ $110.9721004$ 0.495016695 \( \frac{18144}{25} a^{2} + \frac{72864}{25} a - \frac{6592}{5} \) \( \bigl[a^{2} - 5\) , \( 0\) , \( a^{2} - 5\) , \( -a^{2} + 5\) , \( -a^{2} + 6\bigr] \) ${y}^2+\left(a^{2}-5\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-a^{2}+5\right){x}-a^{2}+6$
20.3-d3 20.3-d 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/6\Z$ $\mathrm{SU}(2)$ $1$ $110.9721004$ 0.495016695 \( \frac{809637436}{625} a^{2} - \frac{2864159384}{625} a + \frac{319628652}{125} \) \( \bigl[a^{2} + a - 4\) , \( 1\) , \( a^{2} - 5\) , \( 35 a^{2} + 63 a - 65\) , \( -789 a^{2} - 1456 a + 1383\bigr] \) ${y}^2+\left(a^{2}+a-4\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+{x}^{2}+\left(35a^{2}+63a-65\right){x}-789a^{2}-1456a+1383$
20.3-d4 20.3-d 3.3.1396.1 \( 2^{2} \cdot 5 \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $4.110077794$ 0.495016695 \( -\frac{238031359060300644}{244140625} a^{2} + \frac{72961758716982136}{244140625} a + \frac{343337563102814092}{48828125} \) \( \bigl[a^{2} + a - 4\) , \( 1\) , \( a^{2} - 5\) , \( -2420 a^{2} - 4487 a + 4190\) , \( -167995 a^{2} - 309794 a + 295129\bigr] \) ${y}^2+\left(a^{2}+a-4\right){x}{y}+\left(a^{2}-5\right){y}={x}^{3}+{x}^{2}+\left(-2420a^{2}-4487a+4190\right){x}-167995a^{2}-309794a+295129$
22.1-a1 22.1-a 3.3.1396.1 \( 2 \cdot 11 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.940259949$ $38.49564142$ 2.906283951 \( \frac{2053105}{484} a^{2} + \frac{7369277}{242} a - \frac{11895071}{484} \) \( \bigl[a^{2} + a - 5\) , \( a^{2} + a - 6\) , \( a^{2} + a - 5\) , \( -2 a^{2} - 6 a - 2\) , \( -a - 3\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}+a-5\right){y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-2a^{2}-6a-2\right){x}-a-3$
22.1-a2 22.1-a 3.3.1396.1 \( 2 \cdot 11 \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.880519899$ $19.24782071$ 2.906283951 \( \frac{4764146898377}{14641} a^{2} - \frac{33757096553365}{29282} a + \frac{18949366665621}{29282} \) \( \bigl[a^{2} + a - 5\) , \( a^{2} + a - 6\) , \( a^{2} + a - 5\) , \( -7 a^{2} - 16 a + 3\) , \( -68 a^{2} - 127 a + 115\bigr] \) ${y}^2+\left(a^{2}+a-5\right){x}{y}+\left(a^{2}+a-5\right){y}={x}^{3}+\left(a^{2}+a-6\right){x}^{2}+\left(-7a^{2}-16a+3\right){x}-68a^{2}-127a+115$
22.1-b1 22.1-b 3.3.1396.1 \( 2 \cdot 11 \) $2$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.036291425$ $167.3351089$ 2.925640032 \( \frac{4764146898377}{14641} a^{2} - \frac{33757096553365}{29282} a + \frac{18949366665621}{29282} \) \( \bigl[1\) , \( -a^{2} + 6\) , \( a^{2} - 5\) , \( 35 a^{2} - 10 a - 256\) , \( -160 a^{2} + 48 a + 1155\bigr] \) ${y}^2+{x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-a^{2}+6\right){x}^{2}+\left(35a^{2}-10a-256\right){x}-160a^{2}+48a+1155$
22.1-b2 22.1-b 3.3.1396.1 \( 2 \cdot 11 \) $2$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.036291425$ $334.6702179$ 2.925640032 \( \frac{2053105}{484} a^{2} + \frac{7369277}{242} a - \frac{11895071}{484} \) \( \bigl[1\) , \( -a^{2} + 6\) , \( a^{2} - 5\) , \( -1\) , \( -a^{2} + 6\bigr] \) ${y}^2+{x}{y}+\left(a^{2}-5\right){y}={x}^{3}+\left(-a^{2}+6\right){x}^{2}-{x}-a^{2}+6$
25.1-a1 25.1-a 3.3.1396.1 \( 5^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $42.83215803$ 1.719564640 \( -\frac{600358912}{15625} a^{2} - \frac{845275136}{15625} a + \frac{347107328}{3125} \) \( \bigl[0\) , \( a^{2} - 6\) , \( a^{2} - 4\) , \( -32 a^{2} - 56 a + 64\) , \( -244 a^{2} - 452 a + 422\bigr] \) ${y}^2+\left(a^{2}-4\right){y}={x}^{3}+\left(a^{2}-6\right){x}^{2}+\left(-32a^{2}-56a+64\right){x}-244a^{2}-452a+422$
25.1-a2 25.1-a 3.3.1396.1 \( 5^{2} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $42.83215803$ 1.719564640 \( \frac{1355176800416}{125} a^{2} + \frac{2498138890208}{125} a - \frac{476603580368}{25} \) \( \bigl[a + 1\) , \( -a^{2} - a + 5\) , \( a^{2} - 4\) , \( -15707886356 a^{2} - 28955988193 a + 27621617731\) , \( -2577226701265225 a^{2} - 4750871265988477 a + 4531938232400326\bigr] \) ${y}^2+\left(a+1\right){x}{y}+\left(a^{2}-4\right){y}={x}^{3}+\left(-a^{2}-a+5\right){x}^{2}+\left(-15707886356a^{2}-28955988193a+27621617731\right){x}-2577226701265225a^{2}-4750871265988477a+4531938232400326$
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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.