Cremona's table of elliptic curves

1830 = 2 · 3 · 5 · 61

Class	r	Atkin-Lehner	Eigenvalues
1830a (1 curve)	0	2+ 3+ 5- 61+	2+ 3+ 5-  1  2  5  6 -6
Curve Equation t 1830a1 [1,1,0,-2392,44224] 1
1830b (1 curve)	0	2+ 3+ 5- 61+	2+ 3+ 5- -2 -4 -1  3 -3
Curve Equation t 1830b1 [1,1,0,-1392,-25344] 1
1830c (2 curves)	1	2+ 3- 5+ 61-	2+ 3- 5+  2  0 -7  3 -7
Curve Equation t Generators 1830c1 [1,0,1,-654,6376] 3 [-4:96:1] 1830c2 [1,0,1,-69,17392] 1 [-22:102:1]
1830d (2 curves)	1	2+ 3- 5- 61+	2+ 3- 5- -2  2 -2 -6 -4
Curve Equation t Generators 1830d1 [1,0,1,-98,4916] 2 [-3:73:1] 1830d2 [1,0,1,-4978,133748] 2 [-23:497:1]
1830e (1 curve)	1	2+ 3- 5- 61+	2+ 3- 5- -2 -4 -5  3  5
Curve Equation t Generators 1830e1 [1,0,1,32,56] 1 [10:32:1]
1830f (2 curves)	0	2- 3+ 5+ 61+	2- 3+ 5+  2  2 -6  6  4
Curve Equation t 1830f1 [1,1,1,114,1083] 2 1830f2 [1,1,1,-1106,11819] 2
1830g (6 curves)	0	2- 3+ 5- 61-	2- 3+ 5-  0 -4 -2  2  4
Curve Equation t 1830g1 [1,1,1,7225,-3714115] 4 1830g2 [1,1,1,-320455,-67808323] 8 1830g3 [1,1,1,-5083335,-4413460035] 4 1830g4 [1,1,1,-800455,182367677] 4 1830g5 [1,1,1,-81333335,-282359960035] 2 1830g6 [1,1,1,-5039415,-4493412003] 2
1830h (1 curve)	0	2- 3+ 5- 61-	2- 3+ 5-  0  6  3 -3 -1
Curve Equation t 1830h1 [1,1,1,-25,857] 1
1830i (1 curve)	0	2- 3+ 5- 61-	2- 3+ 5-  3  2  1  2 -2
Curve Equation t 1830i1 [1,1,1,-25,-115] 1
1830j (1 curve)	1	2- 3- 5+ 61+	2- 3- 5+ -4 -2  1 -3 -5
Curve Equation t Generators 1830j1 [1,0,0,19,81] 1 [-2:7:1]
1830k (2 curves)	0	2- 3- 5+ 61-	2- 3- 5+  5  6 -1 -6  2
Curve Equation t 1830k1 [1,0,0,34,-60] 3 1830k2 [1,0,0,-806,-8964] 1
1830l (1 curve)	1	2- 3- 5- 61-	2- 3- 5- -4 -6 -5 -3 -5
Curve Equation t Generators 1830l1 [1,0,0,-8755,350177] 1 [14:473:1]

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