Cremona's table of elliptic curves

203 = 7 · 29

Class	r	Atkin-Lehner	Eigenvalues
203a (2 curves)	0	7- 29+	-2 -1 -4 7-  2  4 -2  5
Curve Equation t 203a1 [0,-1,1,20,-8] 5 203a2 [0,-1,1,-2150,-37668] 1
203c (2 curves)	0	7- 29+	1  2  2 7- -4 -2  4  2
Curve Equation t 203c1 [1,1,0,-9,8] 2 203c2 [1,1,0,-154,675] 2
203b (1 curve)	1	7- 29-	-1 -1  1 7- -5 -5 -4 -4
Curve Equation t Generators 203b1 [1,1,1,0,-2] 1 [2:2:1]

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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