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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
1875.1-a1 1875.1-a \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.414911676$ 3.161861586 \( \frac{11264744}{135} a - \frac{6288625}{27} \) \( \bigl[1\) , \( 0\) , \( a\) , \( 12 a - 13\) , \( -994 a - 1703\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(12a-13\right){x}-994a-1703$
1875.1-a2 1875.1-a \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.414911676$ 3.161861586 \( -\frac{7206992216914}{225} a + \frac{4023359997391}{45} \) \( \bigl[1\) , \( 0\) , \( a\) , \( -738 a - 1888\) , \( -21619 a - 33578\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+\left(-738a-1888\right){x}-21619a-33578$
1875.1-b1 1875.1-b \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.166497504$ $1.714940193$ 3.492312776 \( -\frac{3220180901}{140625} a + \frac{1819167304}{28125} \) \( \bigl[1\) , \( 1\) , \( a + 1\) , \( 1262 a - 3513\) , \( -36032 a + 100561\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+{x}^{2}+\left(1262a-3513\right){x}-36032a+100561$
1875.1-b2 1875.1-b \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.583248752$ $3.429880386$ 3.492312776 \( \frac{136703}{375} a + \frac{64021}{25} \) \( \bigl[1\) , \( 1\) , \( a + 1\) , \( 137 a - 388\) , \( 468 a - 1314\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+{x}^{2}+\left(137a-388\right){x}+468a-1314$
1875.1-c1 1875.1-c \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $2.449109149$ $1.005388833$ 4.298555492 \( -\frac{11264744}{135} a - \frac{6726127}{45} \) \( \bigl[a + 1\) , \( -a + 1\) , \( 0\) , \( -178 a - 315\) , \( -2067 a - 3660\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-178a-315\right){x}-2067a-3660$
1875.1-c2 1875.1-c \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $4.898218299$ $1.005388833$ 4.298555492 \( \frac{7206992216914}{225} a + \frac{12909807770041}{225} \) \( \bigl[a + 1\) , \( -a + 1\) , \( 0\) , \( -2803 a - 5190\) , \( -126567 a - 226035\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-2803a-5190\right){x}-126567a-226035$
1875.1-d1 1875.1-d \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $3.038355968$ 3.978141775 \( \frac{82747}{15} a - \frac{41188}{3} \) \( \bigl[a\) , \( 0\) , \( 0\) , \( 7 a + 10\) , \( 7 a + 10\bigr] \) ${y}^2+a{x}{y}={x}^{3}+\left(7a+10\right){x}+7a+10$
1875.1-e1 1875.1-e \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.244129907$ 1.704752426 \( -\frac{54809252307092563}{457763671875} a + \frac{143121938722332053}{457763671875} \) \( \bigl[a + 1\) , \( -1\) , \( a\) , \( 126 a - 2252\) , \( 2615 a - 41999\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}-{x}^{2}+\left(126a-2252\right){x}+2615a-41999$
1875.1-e2 1875.1-e \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $3.906078517$ 1.704752426 \( \frac{721}{75} a - \frac{242}{25} \) \( \bigl[a + 1\) , \( -1\) , \( a\) , \( a - 2\) , \( -10 a + 1\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}-{x}^{2}+\left(a-2\right){x}-10a+1$
1875.1-e3 1875.1-e \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $3.906078517$ 1.704752426 \( -\frac{11403943879867}{2025} a + \frac{1178951741326}{75} \) \( \bigl[a + 1\) , \( -1\) , \( a\) , \( 376 a - 1377\) , \( -7635 a + 22626\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}-{x}^{2}+\left(376a-1377\right){x}-7635a+22626$
1875.1-e4 1875.1-e \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $3.906078517$ 1.704752426 \( -\frac{169820651}{5625} a + \frac{603627881}{5625} \) \( \bigl[a + 1\) , \( -1\) , \( a\) , \( a - 127\) , \( -260 a + 126\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}-{x}^{2}+\left(a-127\right){x}-260a+126$
1875.1-e5 1875.1-e \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.976519629$ 1.704752426 \( \frac{127041323975657}{1171875} a + \frac{75856556821286}{390625} \) \( \bigl[a + 1\) , \( -1\) , \( a\) , \( -374 a - 877\) , \( -7385 a - 13374\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}-{x}^{2}+\left(-374a-877\right){x}-7385a-13374$
1875.1-e6 1875.1-e \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.244129907$ 1.704752426 \( \frac{100981119568896026467}{1875} a + \frac{180886252308481366123}{1875} \) \( \bigl[a + 1\) , \( -1\) , \( a\) , \( -6874 a - 11502\) , \( -456885 a - 820249\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}-{x}^{2}+\left(-6874a-11502\right){x}-456885a-820249$
1875.1-f1 1875.1-f \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $4.701057821$ 2.051709839 \( -\frac{136703}{375} a + \frac{1097018}{375} \) \( \bigl[a\) , \( a + 1\) , \( a\) , \( 17 a - 68\) , \( -64 a + 148\bigr] \) ${y}^2+a{x}{y}+a{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(17a-68\right){x}-64a+148$
1875.1-f2 1875.1-f \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $1.175264455$ 2.051709839 \( \frac{3220180901}{140625} a + \frac{1958551873}{46875} \) \( \bigl[a\) , \( a + 1\) , \( a\) , \( -108 a + 57\) , \( -814 a + 273\bigr] \) ${y}^2+a{x}{y}+a{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-108a+57\right){x}-814a+273$
1875.1-g1 1875.1-g \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $1.899031205$ 1.657610332 \( -\frac{118784}{75} a - \frac{69632}{25} \) \( \bigl[0\) , \( 1\) , \( a\) , \( -75 a - 133\) , \( -619 a - 1107\bigr] \) ${y}^2+a{y}={x}^{3}+{x}^{2}+\left(-75a-133\right){x}-619a-1107$
1875.1-h1 1875.1-h \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.882207807$ 4.620324638 \( \frac{34754429929766}{7119140625} a + \frac{21524348248643}{2373046875} \) \( \bigl[a + 1\) , \( 1\) , \( 0\) , \( -202 a + 290\) , \( -3426 a + 7395\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+{x}^{2}+\left(-202a+290\right){x}-3426a+7395$
1875.1-h2 1875.1-h \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $1.764415615$ 4.620324638 \( \frac{8865989379088}{84375} a + \frac{15882090952547}{84375} \) \( \bigl[a + 1\) , \( 1\) , \( 0\) , \( 23 a - 335\) , \( -976 a + 520\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+{x}^{2}+\left(23a-335\right){x}-976a+520$
1875.1-i1 1875.1-i \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.152778113$ $3.535870206$ 2.829170043 \( \frac{118784}{75} a - \frac{65536}{15} \) \( \bigl[0\) , \( -a + 1\) , \( a + 1\) , \( 8 a + 2\) , \( -60 a - 96\bigr] \) ${y}^2+\left(a+1\right){y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(8a+2\right){x}-60a-96$
1875.1-j1 1875.1-j \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $4.766986132$ 2.080483313 \( -\frac{3517523978}{9375} a - \frac{1261646113}{1875} \) \( \bigl[1\) , \( 1\) , \( a\) , \( 32 a - 95\) , \( 301 a - 840\bigr] \) ${y}^2+{x}{y}+a{y}={x}^{3}+{x}^{2}+\left(32a-95\right){x}+301a-840$
1875.1-k1 1875.1-k \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.940369156$ $3.262465293$ 5.525614808 \( -\frac{721}{75} a - \frac{1}{15} \) \( \bigl[1\) , \( a + 1\) , \( a + 1\) , \( -16 a - 28\) , \( -474 a - 849\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-16a-28\right){x}-474a-849$
1875.1-k2 1875.1-k \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $3.880738313$ $1.631232646$ 5.525614808 \( -\frac{100981119568896026467}{1875} a + \frac{56373474375475478518}{375} \) \( \bigl[1\) , \( a + 1\) , \( a + 1\) , \( 4359 a + 6472\) , \( 39901 a + 90526\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(a+1\right){x}^{2}+\left(4359a+6472\right){x}+39901a+90526$
1875.1-k3 1875.1-k \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1.940369156$ $3.262465293$ 5.525614808 \( -\frac{127041323975657}{1171875} a + \frac{70922198887903}{234375} \) \( \bigl[1\) , \( a + 1\) , \( a + 1\) , \( -1016 a - 1903\) , \( 3401 a + 6401\bigr] \) ${y}^2+{x}{y}+\left(a+1\right){y}={x}^{3}+\left(a+1\right){x}^{2}+\left(-1016a-1903\right){x}+3401a+6401$
1875.1-k4 1875.1-k \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $0.970184578$ $3.262465293$ 5.525614808 \( \frac{169820651}{5625} a + \frac{28920482}{375} \) \( \bigl[a + 1\) , \( -a\) , \( 1\) , \( 605 a - 1696\) , \( -11457 a + 31973\bigr] \) ${y}^2+\left(a+1\right){x}{y}+{y}={x}^{3}-a{x}^{2}+\left(605a-1696\right){x}-11457a+31973$
1875.1-k5 1875.1-k \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $3.880738313$ $1.631232646$ 5.525614808 \( \frac{54809252307092563}{457763671875} a + \frac{17662537283047898}{91552734375} \) \( \bigl[a + 1\) , \( -a\) , \( 1\) , \( 9480 a - 26571\) , \( -787207 a + 2197723\bigr] \) ${y}^2+\left(a+1\right){x}{y}+{y}={x}^{3}-a{x}^{2}+\left(9480a-26571\right){x}-787207a+2197723$
1875.1-k6 1875.1-k \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.940369156$ $0.815616323$ 5.525614808 \( \frac{11403943879867}{2025} a + \frac{4085550627187}{405} \) \( \bigl[a + 1\) , \( -a\) , \( 1\) , \( 1605 a - 4571\) , \( 39293 a - 110027\bigr] \) ${y}^2+\left(a+1\right){x}{y}+{y}={x}^{3}-a{x}^{2}+\left(1605a-4571\right){x}+39293a-110027$
1875.1-l1 1875.1-l \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $0.237566044$ 0.933140899 \( \frac{294455581472305259}{1125} a - \frac{821910286185694204}{1125} \) \( \bigl[a + 1\) , \( -a + 1\) , \( 0\) , \( 532 a - 1515\) , \( 10518 a - 30860\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(532a-1515\right){x}+10518a-30860$
1875.1-l2 1875.1-l \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $2.138094403$ 0.933140899 \( \frac{27974513}{1215} a - \frac{78080653}{1215} \) \( \bigl[a + 1\) , \( -a + 1\) , \( 0\) , \( 7 a - 15\) , \( 33 a - 35\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(7a-15\right){x}+33a-35$
1875.1-m1 1875.1-m \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $1.024521818$ 0.894275959 \( -\frac{3309568}{81} a - \frac{7503872}{81} \) \( \bigl[0\) , \( -a + 1\) , \( a\) , \( 13 a - 48\) , \( 68 a - 202\bigr] \) ${y}^2+a{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(13a-48\right){x}+68a-202$
1875.1-n1 1875.1-n \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.187089739$ $4.776421002$ 4.680089556 \( -\frac{294455581472305259}{1125} a - \frac{105490940942677789}{225} \) \( \bigl[a + 1\) , \( a - 1\) , \( 0\) , \( 134 a - 472\) , \( -35673 a + 99816\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(134a-472\right){x}-35673a+99816$
1875.1-n2 1875.1-n \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.062363246$ $4.776421002$ 4.680089556 \( -\frac{27974513}{1215} a - \frac{10021228}{243} \) \( \bigl[a + 1\) , \( a - 1\) , \( 0\) , \( -16 a + 53\) , \( 1332 a - 3714\bigr] \) ${y}^2+\left(a+1\right){x}{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(-16a+53\right){x}+1332a-3714$
1875.1-o1 1875.1-o \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.284250416$ $9.298916952$ 4.614384911 \( -\frac{82747}{15} a - \frac{123193}{15} \) \( \bigl[a\) , \( -a\) , \( a\) , \( -15 a - 25\) , \( 47 a + 85\bigr] \) ${y}^2+a{x}{y}+a{y}={x}^{3}-a{x}^{2}+\left(-15a-25\right){x}+47a+85$
1875.1-p1 1875.1-p \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1.488143034$ $2.404092427$ 6.245628902 \( \frac{3517523978}{9375} a - \frac{9825754543}{9375} \) \( \bigl[a\) , \( a + 1\) , \( a + 1\) , \( 24 a - 68\) , \( 98 a - 271\bigr] \) ${y}^2+a{x}{y}+\left(a+1\right){y}={x}^{3}+\left(a+1\right){x}^{2}+\left(24a-68\right){x}+98a-271$
1875.1-q1 1875.1-q \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.149781554$ $8.922663371$ 2.333099074 \( -\frac{168521}{375} a - \frac{18747}{25} \) \( \bigl[a\) , \( a - 1\) , \( a\) , \( -3 a + 7\) , \( -19 a + 52\bigr] \) ${y}^2+a{x}{y}+a{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(-3a+7\right){x}-19a+52$
1875.1-q2 1875.1-q \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.299563108$ $8.922663371$ 2.333099074 \( \frac{73187397017}{46875} a + \frac{26368041532}{9375} \) \( \bigl[a\) , \( a - 1\) , \( a\) , \( 47 a - 168\) , \( -344 a + 1002\bigr] \) ${y}^2+a{x}{y}+a{y}={x}^{3}+\left(a-1\right){x}^{2}+\left(47a-168\right){x}-344a+1002$
1875.1-r1 1875.1-r \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $2.919407663$ $1.018436354$ 5.190497388 \( -\frac{34754429929766}{7119140625} a + \frac{19865494935139}{1423828125} \) \( \bigl[a + 1\) , \( a\) , \( a\) , \( 1415 a - 3913\) , \( -42577 a + 118792\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}+a{x}^{2}+\left(1415a-3913\right){x}-42577a+118792$
1875.1-r2 1875.1-r \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $1.459703831$ $4.073745416$ 5.190497388 \( -\frac{8865989379088}{84375} a + \frac{549957340703}{1875} \) \( \bigl[a + 1\) , \( a\) , \( a\) , \( 1390 a - 3888\) , \( -43552 a + 121517\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}+a{x}^{2}+\left(1390a-3888\right){x}-43552a+121517$
1875.1-s1 1875.1-s \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.038676146$ $12.59751332$ 3.402266687 \( \frac{3309568}{81} a - \frac{3604480}{27} \) \( \bigl[0\) , \( a - 1\) , \( a + 1\) , \( 63 a - 178\) , \( -484 a + 1348\bigr] \) ${y}^2+\left(a+1\right){y}={x}^{3}+\left(a-1\right){x}^{2}+\left(63a-178\right){x}-484a+1348$
1875.1-t1 1875.1-t \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.320016758$ 1.012538324 \( \frac{168521}{375} a - \frac{449726}{375} \) \( \bigl[1\) , \( a + 1\) , \( 1\) , \( 12 a - 28\) , \( 38 a - 104\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(12a-28\right){x}+38a-104$
1875.1-t2 1875.1-t \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.320016758$ 1.012538324 \( -\frac{73187397017}{46875} a + \frac{205027604677}{46875} \) \( \bigl[1\) , \( a + 1\) , \( 1\) , \( 187 a - 528\) , \( 2088 a - 5854\bigr] \) ${y}^2+{x}{y}+{y}={x}^{3}+\left(a+1\right){x}^{2}+\left(187a-528\right){x}+2088a-5854$
1875.1-u1 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.509597846$ 0.889626935 \( -\frac{147281603041}{215233605} \) \( \bigl[a\) , \( 1\) , \( a + 1\) , \( 13752 a - 38508\) , \( -2493690 a + 6961434\bigr] \) ${y}^2+a{x}{y}+\left(a+1\right){y}={x}^{3}+{x}^{2}+\left(13752a-38508\right){x}-2493690a+6961434$
1875.1-u2 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $2.038391385$ 0.889626935 \( -\frac{1}{15} \) \( \bigl[a + 1\) , \( -a + 1\) , \( a\) , \( -4 a - 5\) , \( -561 a - 1005\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-4a-5\right){x}-561a-1005$
1875.1-u3 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.509597846$ 0.889626935 \( \frac{4733169839}{3515625} \) \( \bigl[a + 1\) , \( -a + 1\) , \( a\) , \( 4371 a + 7870\) , \( 129814 a + 232620\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(4371a+7870\right){x}+129814a+232620$
1875.1-u4 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.038391385$ 0.889626935 \( \frac{111284641}{50625} \) \( \bigl[a + 1\) , \( -a + 1\) , \( a\) , \( -1254 a - 2255\) , \( 16189 a + 28995\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-1254a-2255\right){x}+16189a+28995$
1875.1-u5 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.038391385$ 0.889626935 \( \frac{13997521}{225} \) \( \bigl[a\) , \( 1\) , \( a + 1\) , \( 627 a - 1758\) , \( 13185 a - 36816\bigr] \) ${y}^2+a{x}{y}+\left(a+1\right){y}={x}^{3}+{x}^{2}+\left(627a-1758\right){x}+13185a-36816$
1875.1-u6 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z\oplus\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.038391385$ 0.889626935 \( \frac{272223782641}{164025} \) \( \bigl[a\) , \( 1\) , \( a + 1\) , \( 16877 a - 47258\) , \( -1800565 a + 5026434\bigr] \) ${y}^2+a{x}{y}+\left(a+1\right){y}={x}^{3}+{x}^{2}+\left(16877a-47258\right){x}-1800565a+5026434$
1875.1-u7 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $0.509597846$ 0.889626935 \( \frac{56667352321}{15} \) \( \bigl[a + 1\) , \( -a + 1\) , \( a\) , \( -10004 a - 18005\) , \( -832561 a - 1491755\bigr] \) ${y}^2+\left(a+1\right){x}{y}+a{y}={x}^{3}+\left(-a+1\right){x}^{2}+\left(-10004a-18005\right){x}-832561a-1491755$
1875.1-u8 1875.1-u \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\Z/2\Z$ $\mathrm{SU}(2)$ $1$ $2.038391385$ 0.889626935 \( \frac{1114544804970241}{405} \) \( \bigl[a\) , \( 1\) , \( a + 1\) , \( 270002 a - 756008\) , \( -115757440 a + 323153934\bigr] \) ${y}^2+a{x}{y}+\left(a+1\right){y}={x}^{3}+{x}^{2}+\left(270002a-756008\right){x}-115757440a+323153934$
1875.1-v1 1875.1-v \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $1.967118283$ 0.858520803 \( -\frac{102400}{3} \) \( \bigl[0\) , \( -1\) , \( 1\) , \( -8\) , \( -7\bigr] \) ${y}^2+{y}={x}^{3}-{x}^{2}-8{x}-7$
1875.1-v2 1875.1-v \(\Q(\sqrt{21}) \) \( 3 \cdot 5^{4} \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $1.967118283$ 0.858520803 \( \frac{20480}{243} \) \( \bigl[0\) , \( -1\) , \( 1\) , \( 42\) , \( 443\bigr] \) ${y}^2+{y}={x}^{3}-{x}^{2}+42{x}+443$
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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.