Cremona's table of elliptic curves

20900 = 2² · 5² · 11 · 19

Class	r	Atkin-Lehner	Eigenvalues
20900a (2 curves)	0	2- 5+ 11+ 19+	2-  0 5+  2 11+  0  6 19+
Curve Equation t 20900a1 [0,0,0,-45200,-2030375] 2 20900a2 [0,0,0,-332575,72399750] 2
20900b (1 curve)	1	2- 5+ 11+ 19-	2-  1 5+  0 11+  2  4 19-
Curve Equation t Generators 20900b1 [0,1,0,-133,-6137] 1 [57:418:1]
20900c (2 curves)	1	2- 5+ 11- 19+	2- -2 5+  4 11- -4 -4 19+
Curve Equation t Generators 20900c1 [0,1,0,-15133,-721512] 2 [148:550:1] 20900c2 [0,1,0,-16508,-584012] 2 [7363:631750:1]
20900d (2 curves)	1	2- 5+ 11- 19+	2- -2 5+ -4 11-  4 -4 19+
Curve Equation t Generators 20900d1 [0,1,0,-397419133,-1761138357012] 2 [-11727:1134375:1] 20900d2 [0,1,0,-2833315508,56797810497988] 2 [50588:6552150:1]
20900e (2 curves)	0	2- 5+ 11- 19-	2- -2 5+  0 11- -4  2 19-
Curve Equation t 20900e1 [0,1,0,67,-1112] 2 20900e2 [0,1,0,-1308,-17612] 2
20900f (2 curves)	1	2- 5- 11- 19-	2-  0 5-  2 11- -2  2 19-
Curve Equation t Generators 20900f1 [0,0,0,-620,5925] 2 [59:418:1] 20900f2 [0,0,0,-895,150] 2 [-10:90:1]
20900g (2 curves)	1	2- 5- 11- 19-	2-  0 5- -2 11-  2 -2 19-
Curve Equation t Generators 20900g1 [0,0,0,-15500,740625] 2 [86:209:1] 20900g2 [0,0,0,-22375,18750] 2 [-25:750:1]

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

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