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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
49.1-a2 49.1-a 5.5.36497.1 \( 7^{2} \) $1$ $\Z/2\Z$ $\mathrm{SU}(2)$ $0.016471345$ $19054.75690$ 2.05359085 \( \frac{827}{7} a^{4} + 5033 a^{3} - \frac{28282}{7} a^{2} - \frac{26855}{7} a + \frac{13946}{7} \) \( \bigl[a^{4} - 2 a^{3} - 3 a^{2} + 6 a + 2\) , \( 2 a^{4} - 3 a^{3} - 8 a^{2} + 9 a + 5\) , \( 2 a^{4} - 3 a^{3} - 6 a^{2} + 7 a + 2\) , \( 10 a^{4} - 17 a^{3} - 35 a^{2} + 39 a + 24\) , \( 16 a^{4} - 27 a^{3} - 54 a^{2} + 56 a + 36\bigr] \) ${y}^2+\left(a^{4}-2a^{3}-3a^{2}+6a+2\right){x}{y}+\left(2a^{4}-3a^{3}-6a^{2}+7a+2\right){y}={x}^{3}+\left(2a^{4}-3a^{3}-8a^{2}+9a+5\right){x}^{2}+\left(10a^{4}-17a^{3}-35a^{2}+39a+24\right){x}+16a^{4}-27a^{3}-54a^{2}+56a+36$
49.1-b2 49.1-b 5.5.36497.1 \( 7^{2} \) $0 \le r \le 2$ $\Z/4\Z$ $\mathrm{SU}(2)$ $1$ $3724.106794$ 1.21835419 \( \frac{827}{7} a^{4} + 5033 a^{3} - \frac{28282}{7} a^{2} - \frac{26855}{7} a + \frac{13946}{7} \) \( \bigl[2 a^{4} - 3 a^{3} - 6 a^{2} + 6 a + 1\) , \( a^{4} - a^{3} - 4 a^{2} + 3 a + 2\) , \( a^{4} - 2 a^{3} - 3 a^{2} + 6 a + 1\) , \( 2 a^{4} - 3 a^{3} - 5 a^{2} + 6 a + 1\) , \( 2 a^{4} - 2 a^{3} - 7 a^{2} + 4 a + 2\bigr] \) ${y}^2+\left(2a^{4}-3a^{3}-6a^{2}+6a+1\right){x}{y}+\left(a^{4}-2a^{3}-3a^{2}+6a+1\right){y}={x}^{3}+\left(a^{4}-a^{3}-4a^{2}+3a+2\right){x}^{2}+\left(2a^{4}-3a^{3}-5a^{2}+6a+1\right){x}+2a^{4}-2a^{3}-7a^{2}+4a+2$
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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.