Cremona's table of elliptic curves

30820 = 2² · 5 · 23 · 67

Class	r	Atkin-Lehner	Eigenvalues
30820a (1 curve)	0	2- 5+ 23+ 67+	2-  1 5+  3  6 -2 -4  4
Curve Equation t 30820a1 [0,1,0,-101066,12397745] 1
30820b (1 curve)	1	2- 5+ 23+ 67-	2-  1 5+  5 -2 -6  0  0
Curve Equation t Generators 30820b1 [0,1,0,-1626,-25855] 1 [646:16399:1]
30820c (1 curve)	1	2- 5+ 23- 67+	2- -3 5+  3 -2 -2  4 -4
Curve Equation t Generators 30820c1 [0,0,0,-13,-83] 1 [9:-23:1]
30820d (2 curves)	0	2- 5- 23- 67+	2-  0 5-  0 -4 -4 -4  2
Curve Equation t 30820d1 [0,0,0,-512,-4459] 2 30820d2 [0,0,0,-487,-4914] 2
30820e (1 curve)	1	2- 5- 23- 67-	2-  1 5- -2 -6 -1  6  0
Curve Equation t Generators 30820e1 [0,1,0,-70,-407] 1 [18:-67:1]

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

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