Cremona's table of elliptic curves

2331 = 3² · 7 · 37

Class	r	Atkin-Lehner	Eigenvalues
2331a (4 curves)	1	3- 7+ 37-	-1 3-  2 7+  0 -2 -2 -4
Curve Equation t Generators 2331a1 [1,-1,1,-11804,496550] 4 [-7500:36361:64] 2331a2 [1,-1,1,-11849,492608] 4 [106:594:1] 2331a3 [1,-1,1,-23504,-626272] 2 [169:370:1] 2331a4 [1,-1,1,-914,1358660] 2 [-30:1180:1]
2331b (4 curves)	1	3- 7+ 37-	-1 3-  2 7+ -4  2 -2  4
Curve Equation t Generators 2331b1 [1,-1,1,-149,-660] 2 [18:38:1] 2331b2 [1,-1,1,-194,-192] 4 [-4:24:1] 2331b3 [1,-1,1,-1859,31110] 2 [-10:225:1] 2331b4 [1,-1,1,751,-2082] 2 [12:86:1]
2331c (1 curve)	1	3- 7+ 37-	2 3- -1 7+ -1 -1 -2  4
Curve Equation t Generators 2331c1 [0,0,1,-22787553,-41873464535] 1 [11267449006998981823591581149315305464692306563594:1004180797746833075941171643371613899892329558272283:1073662885578314794699393270058310986889998056]
2331d (1 curve)	1	3- 7+ 37-	2 3- -1 7+  3 -5 -2 -4
Curve Equation t Generators 2331d1 [0,0,1,-3,-63] 1 [34:5:8]
2331e (1 curve)	1	3- 7- 37+	0 3-  1 7-  1 -5  2 -4
Curve Equation t Generators 2331e1 [0,0,1,78,-9216] 1 [38:220:1]
2331f (1 curve)	1	3- 7- 37+	0 3- -3 7-  1 -1  2  4
Curve Equation t Generators 2331f1 [0,0,1,-1524,22900] 1 [22:4:1]
2331g (2 curves)	1	3- 7- 37+	-1 3- -4 7- -4  4  0 -6
Curve Equation t Generators 2331g1 [1,-1,1,-47,910] 2 [-2:32:1] 2331g2 [1,-1,1,-1712,27550] 2 [-14:227:1]
2331h (4 curves)	0	3- 7- 37-	1 3-  2 7-  0  2  6  4
Curve Equation t 2331h1 [1,-1,0,-126,-833] 2 2331h2 [1,-1,0,-2331,-42728] 4 2331h3 [1,-1,0,-37296,-2763005] 2 2331h4 [1,-1,0,-2646,-30191] 2

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

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