Cremona's table of elliptic curves

1281 = 3 · 7 · 61

Class	r	Atkin-Lehner	Eigenvalues
1281a (1 curve)	1	3+ 7+ 61+	2 3+  0 7+ -4 -4  3 -4
Curve Equation t Generators 1281a1 [0,-1,1,-448,4401] 1 [362:2183:8]
1281b (1 curve)	0	3+ 7+ 61-	1 3+  3 7+  4 -2  0  5
Curve Equation t 1281b1 [1,1,0,4,-3] 1
1281c (1 curve)	0	3- 7+ 61+	-1 3-  3 7+  4 -2  4 -1
Curve Equation t 1281c1 [1,0,0,-16289,-3721518] 1
1281d (1 curve)	0	3- 7+ 61+	2 3-  0 7+  4  4  7 -4
Curve Equation t 1281d1 [0,1,1,-1618,68611] 1
1281e (1 curve)	0	3- 7- 61-	1 3- -1 7-  0  2  8  7
Curve Equation t 1281e1 [1,0,1,-44409,-3605735] 1

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

Part of Computational Number Theory
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