Cremona's table of elliptic curves

3381 = 3 · 7² · 23

Class	r	Atkin-Lehner	Eigenvalues
3381a (2 curves)	0	3+ 7- 23+	0 3+  0 7-  6 -5  6  1
Curve Equation t 3381a1 [0,-1,1,-303,-1933] 1 3381a2 [0,-1,1,117,-7120] 1
3381b (2 curves)	0	3+ 7- 23+	1 3+  0 7-  4  6 -4 -2
Curve Equation t 3381b1 [1,1,0,-25,232] 2 3381b2 [1,1,0,-760,7729] 2
3381c (1 curve)	0	3+ 7- 23+	2 3+ -4 7- -5  2  0  5
Curve Equation t 3381c1 [0,-1,1,-4720,147237] 1
3381d (1 curve)	1	3+ 7- 23-	0 3+  0 7- -2  3 -2 -3
Curve Equation t Generators 3381d1 [0,-1,1,16007,-7794291] 1 [7203:105913:27]
3381e (1 curve)	1	3+ 7- 23-	0 3+  0 7-  5 -4 -2 -3
Curve Equation t Generators 3381e1 [0,-1,1,-1143,15476] 1 [-16:171:1]
3381f (1 curve)	1	3+ 7- 23-	-1 3+ -1 7- -2 -7  3  8
Curve Equation t Generators 3381f1 [1,1,1,-36,90] 1 [-6:14:1]
3381g (1 curve)	1	3+ 7- 23-	-1 3+  3 7- -2  1 -1  0
Curve Equation t Generators 3381g1 [1,1,1,-33664,-2398306] 1 [4829734:223281586:2197]
3381h (1 curve)	1	3+ 7- 23-	2 3+  0 7-  1 -2 -4  3
Curve Equation t Generators 3381h1 [0,-1,1,82,-253] 1 [26:45:8]
3381i (2 curves)	0	3- 7+ 23+	0 3-  0 7+  6  5 -6 -1
Curve Equation t 3381i1 [0,1,1,-14863,692647] 3 3381i2 [0,1,1,5717,2430628] 1
3381j (1 curve)	1	3- 7+ 23-	0 3-  0 7+ -2 -3  2  3
Curve Equation t Generators 3381j1 [0,1,1,327,22817] 1 [39:310:1]
3381k (1 curve)	1	3- 7+ 23-	-1 3-  1 7+ -2  7 -3 -8
Curve Equation t Generators 3381k1 [1,0,0,-1765,-36226] 1 [85:613:1]
3381l (1 curve)	1	3- 7+ 23-	-1 3- -3 7+ -2 -1  1  0
Curve Equation t Generators 3381l1 [1,0,0,-687,6894] 1 [-3:96:1]
3381m (1 curve)	0	3- 7- 23-	0 3-  0 7-  5  4  2  3
Curve Equation t 3381m1 [0,1,1,-23,-52] 1

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