Cremona's table of elliptic curves

656 = 2⁴ · 41

Class	r	Atkin-Lehner	Eigenvalues
656a (2 curves)	1	2+ 41+	2+  0 -2  2  0 -4 -2 -4
Curve Equation t Generators 656a1 [0,0,0,-11,10] 2 [-3:4:1] 656a2 [0,0,0,29,66] 2 [-1:6:1]
656b (2 curves)	0	2+ 41-	2+ -2  2  2 -2  6 -6  2
Curve Equation t 656b1 [0,1,0,-12,-20] 2 656b2 [0,1,0,8,-60] 2
656c (2 curves)	0	2- 41+	2-  2 -2  4  2  4 -2 -6
Curve Equation t 656c1 [0,-1,0,-24,-16] 2 656c2 [0,-1,0,-184,1008] 2

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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