Cremona's table of elliptic curves

1230 = 2 · 3 · 5 · 41

Class	r	Atkin-Lehner	Eigenvalues
1230a (2 curves)	1	2+ 3+ 5- 41-	2+ 3+ 5- -2  2 -2 -4  2
Curve Equation t Generators 1230a1 [1,1,0,-152,-276] 2 [-7:26:1] 1230a2 [1,1,0,-1402,19474] 2 [33:86:1]
1230b (2 curves)	0	2+ 3- 5+ 41+	2+ 3- 5+ -1  6 -4  0  5
Curve Equation t 1230b1 [1,0,1,121,14762] 3 1230b2 [1,0,1,-1094,-398824] 1
1230c (4 curves)	1	2+ 3- 5+ 41-	2+ 3- 5+  0 -4  2 -6  0
Curve Equation t Generators 1230c1 [1,0,1,-9,76] 2 [4:8:1] 1230c2 [1,0,1,-329,2252] 4 [3:34:1] 1230c3 [1,0,1,-529,-868] 2 [-12:67:1] 1230c4 [1,0,1,-5249,145916] 2 [44:3:1]
1230d (2 curves)	1	2+ 3- 5- 41+	2+ 3- 5- -2  0 -4 -6 -4
Curve Equation t Generators 1230d1 [1,0,1,-53,-52] 2 [-6:10:1] 1230d2 [1,0,1,197,-352] 2 [4:20:1]
1230e (2 curves)	1	2- 3+ 5+ 41-	2- 3+ 5+ -2 -2  2  4 -6
Curve Equation t Generators 1230e1 [1,1,1,-61,83] 2 [-1:12:1] 1230e2 [1,1,1,-861,9363] 2 [19:8:1]
1230f (8 curves)	0	2- 3+ 5- 41-	2- 3+ 5-  0  4 -2  2 -4
Curve Equation t 1230f1 [1,1,1,-4890,129447] 8 1230f2 [1,1,1,-6170,54695] 8 1230f3 [1,1,1,-56170,-5105305] 8 1230f4 [1,1,1,23350,456167] 4 1230f5 [1,1,1,-896670,-327184905] 4 1230f6 [1,1,1,-15670,-12265705] 4 1230f7 [1,1,1,-14346720,-20921901465] 2 1230f8 [1,1,1,-894620,-328752745] 2
1230g (1 curve)	0	2- 3+ 5- 41-	2- 3+ 5-  3 -2  4 -4  5
Curve Equation t 1230g1 [1,1,1,0,15] 1
1230h (4 curves)	1	2- 3- 5+ 41+	2- 3- 5+ -4 -6 -4  0  2
Curve Equation t Generators 1230h1 [1,0,0,-516,3600] 6 [-24:60:1] 1230h2 [1,0,0,1084,21840] 6 [-14:70:1] 1230h3 [1,0,0,-12756,-555264] 2 [-66:48:1] 1230h4 [1,0,0,-10256,-778764] 2 [184:1798:1]
1230i (2 curves)	0	2- 3- 5+ 41-	2- 3- 5+ -2  2  6  0 -2
Curve Equation t 1230i1 [1,0,0,-52706,4467936] 2 1230i2 [1,0,0,-833956,293061686] 2
1230j (1 curve)	0	2- 3- 5+ 41-	2- 3- 5+  3  2 -4  0  3
Curve Equation t 1230j1 [1,0,0,-21,-39] 1
1230k (2 curves)	0	2- 3- 5- 41+	2- 3- 5-  1 -2  0  4 -1
Curve Equation t 1230k1 [1,0,0,2305,-15975] 7 1230k2 [1,0,0,-1202045,-507358545] 1

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