Cremona's table of elliptic curves

320 = 2⁶ · 5

Class	r	Atkin-Lehner	Eigenvalues
320b (4 curves)	1	2+ 5+	2+  0 5+ -4 -4  2  2 -4
Curve Equation t Generators 320b1 [0,0,0,-8,8] 2 [-2:4:1] 320b2 [0,0,0,-28,-48] 4 [-3:3:1] 320b3 [0,0,0,-428,-3408] 2 [24:12:1] 320b4 [0,0,0,52,-272] 2 [6:16:1]
320c (4 curves)	0	2+ 5-	2+  2 5-  2  0 -2 -6  4
Curve Equation t 320c1 [0,-1,0,-5,5] 2 320c2 [0,-1,0,15,17] 2 320c3 [0,-1,0,-165,-763] 2 320c4 [0,-1,0,-145,-975] 2
320d (2 curves)	0	2+ 5-	2+  2 5- -2  4  6  2 -8
Curve Equation t 320d1 [0,-1,0,0,2] 2 320d2 [0,-1,0,-25,57] 2
320e (2 curves)	0	2+ 5-	2+ -2 5-  2 -4  6  2  8
Curve Equation t 320e1 [0,1,0,0,-2] 2 320e2 [0,1,0,-25,-57] 2
320a (4 curves)	0	2- 5+	2-  0 5+  4  4  2  2  4
Curve Equation t 320a1 [0,0,0,-8,-8] 2 320a2 [0,0,0,-28,48] 4 320a3 [0,0,0,-428,3408] 2 320a4 [0,0,0,52,272] 2
320f (4 curves)	1	2- 5-	2- -2 5- -2  0 -2 -6 -4
Curve Equation t Generators 320f1 [0,1,0,-5,-5] 2 [-2:1:1] 320f2 [0,1,0,15,-17] 2 [3:8:1] 320f3 [0,1,0,-165,763] 2 [11:-20:1] 320f4 [0,1,0,-145,975] 2 [-5:40:1]

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

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