Cremona's table of elliptic curves

23256 = 2³ · 3² · 17 · 19

Class	r	Atkin-Lehner	Eigenvalues
23256a (1 curve)	2	2+ 3- 17+ 19+	2+ 3- -1 -3 -2  0 17+ 19+
Curve Equation t Generators 23256a1 [0,0,0,-3,1294] 1 [-10:18:1]&[-1:36:1]
23256b (6 curves)	0	2+ 3- 17+ 19+	2+ 3-  2  0  4  6 17+ 19+
Curve Equation t 23256b1 [0,0,0,-18714,-1160327] 2 23256b2 [0,0,0,-313959,-67708550] 4 23256b3 [0,0,0,-328539,-61074650] 4 23256b4 [0,0,0,-5023299,-4333428722] 2 23256b5 [0,0,0,607821,-345540818] 2 23256b6 [0,0,0,-1498179,647961118] 2
23256c (4 curves)	0	2+ 3- 17+ 19+	2+ 3-  2 -4  0 -2 17+ 19+
Curve Equation t 23256c1 [0,0,0,726,-727] 2 23256c2 [0,0,0,-2919,-5830] 4 23256c3 [0,0,0,-30459,2037638] 2 23256c4 [0,0,0,-33699,-2375890] 2
23256d (4 curves)	1	2+ 3- 17+ 19-	2+ 3- -2  0  0 -2 17+ 19-
Curve Equation t Generators 23256d1 [0,0,0,-4791,87626] 2 [-1:304:1] 23256d2 [0,0,0,-69771,7092470] 4 [79:1440:1] 23256d3 [0,0,0,-62931,8538446] 2 [98:1820:1] 23256d4 [0,0,0,-1116291,453956510] 2 [39940:38655:64]
23256e (2 curves)	1	2+ 3- 17+ 19-	2+ 3- -4  2  4  2 17+ 19-
Curve Equation t Generators 23256e1 [0,0,0,-507,2950] 2 [-6:76:1] 23256e2 [0,0,0,-7347,242350] 2 [66:212:1]
23256f (2 curves)	1	2+ 3- 17- 19+	2+ 3-  2 -2  2 -6 17- 19+
Curve Equation t Generators 23256f1 [0,0,0,-4359,-109798] 2 [434:8930:1] 23256f2 [0,0,0,-7779,86510] 2 [7:180:1]
23256g (1 curve)	1	2+ 3- 17- 19+	2+ 3- -3  3 -2  0 17- 19+
Curve Equation t Generators 23256g1 [0,0,0,-20019,-1092706] 1 [695:17908:1]
23256h (2 curves)	0	2+ 3- 17- 19-	2+ 3-  2  0  0  2 17- 19-
Curve Equation t 23256h1 [0,0,0,6,385] 2 23256h2 [0,0,0,-759,7882] 2
23256i (2 curves)	0	2+ 3- 17- 19-	2+ 3- -4  0  0 -4 17- 19-
Curve Equation t 23256i1 [0,0,0,-444747,-114160970] 2 23256i2 [0,0,0,-444387,-114355010] 2
23256j (1 curve)	0	2- 3- 17+ 19-	2- 3- -1  1 -2 -4 17+ 19-
Curve Equation t 23256j1 [0,0,0,11157,-383434] 1
23256k (2 curves)	0	2- 3- 17- 19+	2- 3-  0 -2 -4  2 17- 19+
Curve Equation t 23256k1 [0,0,0,-28515,-802546] 2 23256k2 [0,0,0,101445,-6078922] 2
23256l (1 curve)	0	2- 3- 17- 19+	2- 3- -3  1  2 -4 17- 19+
Curve Equation t 23256l1 [0,0,0,-37019019,86693287574] 1
23256m (2 curves)	1	2- 3- 17- 19-	2- 3-  2 -2 -2  2 17- 19-
Curve Equation t Generators 23256m1 [0,0,0,-132879,18643538] 2 [-131:5814:1] 23256m2 [0,0,0,-136299,17633270] 2 [-133:5780:1]

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