Cremona's table of elliptic curves

13420 = 2² · 5 · 11 · 61

Class	r	Atkin-Lehner	Eigenvalues
13420a (2 curves)	1	2- 5+ 11+ 61-	2-  1 5+  5 11+ -4 -3  2
Curve Equation t Generators 13420a1 [0,1,0,54,-1495] 3 [264:215:27] 13420a2 [0,1,0,-8486,-303811] 1 [70957236:379716875:592704]
13420b (1 curve)	1	2- 5+ 11- 61+	2-  2 5+  4 11- -5  4 -2
Curve Equation t Generators 13420b1 [0,-1,0,-4581,120881] 1 [8:291:1]
13420c (1 curve)	1	2- 5+ 11- 61+	2- -3 5+ -1 11-  0 -1 -2
Curve Equation t Generators 13420c1 [0,0,0,-7393,-439367] 1 [119:605:1]
13420d (1 curve)	0	2- 5+ 11- 61-	2-  1 5+  3 11-  2  7  8
Curve Equation t 13420d1 [0,1,0,14,-11] 1
13420e (2 curves)	0	2- 5+ 11- 61-	2-  2 5+  4 11-  2  0  0
Curve Equation t 13420e1 [0,-1,0,-181,-834] 2 13420e2 [0,-1,0,124,-3640] 2
13420f (1 curve)	0	2- 5+ 11- 61-	2- -3 5+ -1 11-  2 -5  0
Curve Equation t 13420f1 [0,0,0,-5186773,4546686097] 1
13420g (2 curves)	0	2- 5- 11+ 61-	2-  1 5- -1 11+  2  3  2
Curve Equation t 13420g1 [0,1,0,50,625] 3 13420g2 [0,1,0,-450,-17275] 1
13420h (1 curve)	0	2- 5- 11+ 61-	2-  3 5-  1 11+  6  5  6
Curve Equation t 13420h1 [0,0,0,8183,-365899] 1
13420i (2 curves)	0	2- 5- 11- 61+	2-  2 5- -2 11-  4 -2  4
Curve Equation t 13420i1 [0,-1,0,-265,-738] 2 13420i2 [0,-1,0,-3620,-82600] 2
13420j (1 curve)	1	2- 5- 11- 61-	2- -1 5-  3 11-  0  3 -4
Curve Equation t Generators 13420j1 [0,-1,0,-330,2797] 1 [19:55:1]
13420k (1 curve)	1	2- 5- 11- 61-	2- -3 5- -1 11-  2  7  0
Curve Equation t Generators 13420k1 [0,0,0,83,-551] 1 [8:25:1]

Data from Elliptic Curve Data by J. E. Cremona.
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