Cremona's table of elliptic curves

12506 = 2 · 13² · 37

Class	r	Atkin-Lehner	Eigenvalues
12506a (2 curves)	1	2+ 13+ 37+	2+  0  1 -4  3 13+ -4  0
Curve Equation t Generators 12506a1 [1,-1,0,-9116314,10596695526] 1 [2575:63451:1] 12506a2 [1,-1,0,18302246,54487812276] 1 [-440940338803196720022616819479:87589820078604572488723309877598:460061031105194834819615201]
12506b (2 curves)	1	2+ 13+ 37+	2+  0 -2  2 -6 13+  2  0
Curve Equation t Generators 12506b1 [1,-1,0,-1468,-19200] 2 [-25:50:1] 12506b2 [1,-1,0,1912,-96940] 2 [62:476:1]
12506c (1 curve)	1	2+ 13+ 37+	2+  0 -3  0  3 13+  0  0
Curve Equation t Generators 12506c1 [1,-1,0,14,-12] 1 [1:1:1]
12506d (2 curves)	1	2- 13+ 37-	2-  0 -1  4 -3 13+ -4  0
Curve Equation t Generators 12506d1 [1,-1,1,-53943,4835705] 1 [8596:-4291:64] 12506d2 [1,-1,1,108297,24776015] 1 [75:5734:1]
12506e (1 curve)	1	2- 13+ 37-	2-  0  3  0 -3 13+  0  0
Curve Equation t Generators 12506e1 [1,-1,1,2334,-19327] 1 [127:1457:1]

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

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