Cremona's table of elliptic curves

25215 = 3 · 5 · 41²

Class	r	Atkin-Lehner	Eigenvalues
25215a (1 curve)	1	3+ 5+ 41+	0 3+ 5+  0  1  4  3  6
Curve Equation t Generators 25215a1 [0,-1,1,132239,-16585758] 1 [181896:2667922:1331]
25215b (1 curve)	0	3+ 5+ 41-	-1 3+ 5+  2  3 -1  8  6
Curve Equation t 25215b1 [1,1,1,-1161606,68959728] 1
25215c (2 curves)	0	3+ 5- 41+	1 3+ 5-  4  0 -4  4  0
Curve Equation t 25215c1 [1,1,0,-5262,-146889] 2 25215c2 [1,1,0,-137,-414414] 2
25215d (1 curve)	1	3+ 5- 41-	-2 3+ 5- -1  0  5 -2  3
Curve Equation t Generators 25215d1 [0,-1,1,-252710,52073006] 1 [-560:4202:1]
25215e (2 curves)	0	3- 5+ 41+	-1 3- 5+  0 -2  0  0 -2
Curve Equation t 25215e1 [1,0,0,-10121,-229224] 2 25215e2 [1,0,0,31904,-1632859] 2
25215f (1 curve)	2	3- 5+ 41+	-1 3- 5+ -2 -3  1 -8 -6
Curve Equation t Generators 25215f1 [1,0,0,-691,950] 1 [53:311:1]&[-22:86:1]
25215g (2 curves)	1	3- 5- 41+	1 3- 5- -4  0  4 -4  0
Curve Equation t Generators 25215g1 [1,0,1,-8846298,-9973354697] 2 [-1621:11190:1] 25215g2 [1,0,1,-231173,-28557902347] 2 [1274676:-180151685:64]
25215h (8 curves)	1	3- 5- 41+	-1 3- 5-  0  4  2 -2 -4
Curve Equation t Generators 25215h1 [1,0,0,-35,12840] 2 [849243:-9904977:6859] 25215h2 [1,0,0,-8440,293567] 4 [499:10723:1] 25215h3 [1,0,0,-16845,-390600] 4 [-105:525:1] 25215h4 [1,0,0,-134515,18977882] 2 [719642:-13958140:1331] 25215h5 [1,0,0,58800,-2917143] 2 [509:12353:1] 25215h6 [1,0,0,-226970,-41617125] 4 [54210:2326295:27] 25215h7 [1,0,0,-184945,-57494170] 2 [30886:1890811:8] 25215h8 [1,0,0,-3630995,-2663397180] 2 [-377375670:188854863:343000]
25215i (1 curve)	1	3- 5- 41+	-2 3- 5-  1  0 -5  2 -3
Curve Equation t Generators 25215i1 [0,1,1,-150,704] 1 [6:-8:1]

Data from Elliptic Curve Data by J. E. Cremona.
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