Cremona's table of elliptic curves

208 = 2⁴ · 13

Class	r	Atkin-Lehner	Eigenvalues
208b (1 curve)	1	2+ 13+	2+ -1 -1 -5  2 13+ -3  2
Curve Equation t Generators 208b1 [0,-1,0,-16,32] 1 [4:-4:1]
208c (2 curves)	0	2- 13+	2-  0  2  2  2 13+  6  6
Curve Equation t 208c1 [0,0,0,1,10] 2 208c2 [0,0,0,-4,3] 2
208d (2 curves)	0	2- 13+	2-  3 -1 -1  2 13+ -3 -6
Curve Equation t 208d1 [0,0,0,-43,-166] 1 208d2 [0,0,0,-3403,83834] 1
208a (3 curves)	1	2- 13-	2- -1 -3  1 -6 13- -3 -2
Curve Equation t Generators 208a1 [0,-1,0,8,-16] 1 [4:8:1] 208a2 [0,-1,0,-72,496] 1 [36:208:1] 208a3 [0,-1,0,-7352,245104] 1 [60:128:1]

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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