Cremona's table of elliptic curves

42025 = 5² · 41²

Class	r	Atkin-Lehner	Eigenvalues
42025a (4 curves)	1	5+ 41+	1  0 5+ -4  0 -2 -6  0
Curve Equation t Generators 42025a1 [1,-1,0,-911417,334871616] 2 [-912:20628:1] 42025a2 [1,-1,0,-1121542,169082991] 4 [74:9263:1] 42025a3 [1,-1,0,4131583,1298504866] 2 [845236:97880707:64] 42025a4 [1,-1,0,-9736667,-11573332384] 2 [-397542:2463073:216]
42025b (2 curves)	1	5+ 41+	1  2 5+  2 -6  2  2  6
Curve Equation t Generators 42025b1 [1,1,0,-883400,-319676125] 2 [-8892659808186:-4139588245379:16406426421] 42025b2 [1,1,0,-673275,-475378750] 2 [126237252940710065002464:6462448170130098273590665:42743422827051319296]
42025c (2 curves)	1	5+ 41+	-1  2 5+  2  0 -4  4  0
Curve Equation t Generators 42025c1 [1,1,1,-105938,-233594] 2 [3227700:19765957:9261] 42025c2 [1,1,1,-1156563,476750156] 2 [1200:28012:1]

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

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