Cremona's table of elliptic curves

20904 = 2³ · 3 · 13 · 67

Class	r	Atkin-Lehner	Eigenvalues
20904a (1 curve)	0	2+ 3+ 13+ 67-	2+ 3+  0 -4 -5 13+  6  5
Curve Equation t 20904a1 [0,-1,0,1797912,106725276] 1
20904b (1 curve)	1	2+ 3+ 13- 67-	2+ 3+  1  1  2 13- -4 -2
Curve Equation t Generators 20904b1 [0,-1,0,-200,2844] 1 [-14:52:1]
20904c (1 curve)	0	2+ 3- 13+ 67+	2+ 3-  0  0 -1 13+  2  7
Curve Equation t 20904c1 [0,1,0,-22816808,41986039776] 1
20904d (1 curve)	0	2+ 3- 13+ 67+	2+ 3-  1 -5  2 13+  0  2
Curve Equation t 20904d1 [0,1,0,2280,24096] 1
20904e (1 curve)	2	2+ 3- 13+ 67+	2+ 3- -2 -4 -2 13+  3 -5
Curve Equation t Generators 20904e1 [0,1,0,311,6395] 1 [-13:18:1]&[-1:78:1]
20904f (1 curve)	0	2+ 3- 13+ 67+	2+ 3-  4  4 -1 13+ -6 -1
Curve Equation t 20904f1 [0,1,0,-1256,-32928] 1
20904g (1 curve)	1	2- 3+ 13- 67+	2- 3+  0 -4  5 13-  2  7
Curve Equation t Generators 20904g1 [0,-1,0,32,28] 1 [6:20:1]

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

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