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Label Class Conductor Rank Torsion CM Regulator Weierstrass coefficients Weierstrass equation
20.a1 20.a \( 2^{2} \cdot 5 \) $0$ $\Z/2\Z$ $1$ $[0, 1, 0, -41, -116]$ \(y^2=x^3+x^2-41x-116\)
20.a2 20.a \( 2^{2} \cdot 5 \) $0$ $\Z/2\Z$ $1$ $[0, 1, 0, -36, -140]$ \(y^2=x^3+x^2-36x-140\)
20.a3 20.a \( 2^{2} \cdot 5 \) $0$ $\Z/6\Z$ $1$ $[0, 1, 0, -1, 0]$ \(y^2=x^3+x^2-x\)
20.a4 20.a \( 2^{2} \cdot 5 \) $0$ $\Z/6\Z$ $1$ $[0, 1, 0, 4, 4]$ \(y^2=x^3+x^2+4x+4\)
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