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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
29.1-a2 29.1-a 5.5.65657.1 \( 29 \) $1$ $\mathsf{trivial}$ $\mathrm{SU}(2)$ $0.037391226$ $2117.436500$ 1.54493280 \( \frac{3112416550238}{24389} a^{4} - \frac{4117133380738}{24389} a^{3} - \frac{14702539245891}{24389} a^{2} + \frac{10904653871054}{24389} a + \frac{14162641194095}{24389} \) \( \bigl[-a^{4} + 2 a^{3} + 4 a^{2} - 6 a - 2\) , \( -a^{2} + 3\) , \( a^{3} - 3 a - 1\) , \( -6 a^{4} + 9 a^{3} + 25 a^{2} - 25 a - 16\) , \( 3 a^{4} - 5 a^{3} - 12 a^{2} + 11 a + 8\bigr] \) ${y}^2+\left(-a^{4}+2a^{3}+4a^{2}-6a-2\right){x}{y}+\left(a^{3}-3a-1\right){y}={x}^{3}+\left(-a^{2}+3\right){x}^{2}+\left(-6a^{4}+9a^{3}+25a^{2}-25a-16\right){x}+3a^{4}-5a^{3}-12a^{2}+11a+8$
261.1-a2 261.1-a 5.5.65657.1 \( 3^{2} \cdot 29 \) 0 $\mathsf{trivial}$ $\mathrm{SU}(2)$ $1$ $79.88313084$ 2.80580232 \( \frac{3112416550238}{24389} a^{4} - \frac{4117133380738}{24389} a^{3} - \frac{14702539245891}{24389} a^{2} + \frac{10904653871054}{24389} a + \frac{14162641194095}{24389} \) \( \bigl[-a^{4} + a^{3} + 5 a^{2} - 2 a - 4\) , \( -a^{4} + 5 a^{2} - 2\) , \( 0\) , \( -7 a^{4} + 8 a^{3} + 34 a^{2} - 20 a - 27\) , \( -7 a^{4} + 5 a^{3} + 40 a^{2} - 11 a - 48\bigr] \) ${y}^2+\left(-a^{4}+a^{3}+5a^{2}-2a-4\right){x}{y}={x}^{3}+\left(-a^{4}+5a^{2}-2\right){x}^{2}+\left(-7a^{4}+8a^{3}+34a^{2}-20a-27\right){x}-7a^{4}+5a^{3}+40a^{2}-11a-48$
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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.