Cremona's table of elliptic curves

806 = 2 · 13 · 31

Class	r	Atkin-Lehner	Eigenvalues
806a (1 curve)	1	2+ 13+ 31+	2+  1  1 -3  0 13+ -5 -2
Curve Equation t Generators 806a1 [1,0,1,-3,30] 1 [6:12:1]
806b (1 curve)	1	2+ 13+ 31+	2+ -1 -1  1  2 13+  7 -4
Curve Equation t Generators 806b1 [1,1,0,52,-176] 1 [5:13:1]
806c (1 curve)	1	2- 13- 31+	2-  1 -3 -3 -4 13-  3 -4
Curve Equation t Generators 806c1 [1,0,0,-97,361] 1 [12:25:1]
806d (1 curve)	1	2- 13- 31+	2- -3  1 -3  0 13-  3 -8
Curve Equation t Generators 806d1 [1,-1,1,318,-2367] 1 [137:1543:1]
806e (3 curves)	0	2- 13- 31-	2-  1  3 -1  0 13-  3  2
Curve Equation t 806e1 [1,0,0,2511,39401] 3 806e2 [1,0,0,-25649,-2195479] 3 806e3 [1,0,0,-2293609,-1337178239] 1
806f (2 curves)	0	2- 13- 31-	2- -1  1  3  2 13-  3  0
Curve Equation t 806f1 [1,1,1,-14105,638919] 5 806f2 [1,1,1,66885,2264179] 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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