Cremona's table of elliptic curves

20988 = 2² · 3² · 11 · 53

Class	r	Atkin-Lehner	Eigenvalues
20988a (1 curve)	1	2- 3- 11+ 53+	2- 3-  1 -2 11+  6  0  0
Curve Equation t Generators 20988a1 [0,0,0,288,-3132] 1 [13:53:1]
20988b (2 curves)	1	2- 3- 11+ 53+	2- 3-  2  2 11+ -2  0 -4
Curve Equation t Generators 20988b1 [0,0,0,-444,4525] 2 [-13:90:1] 20988b2 [0,0,0,-7599,254950] 2 [850:6435:8]
20988c (1 curve)	1	2- 3- 11+ 53+	2- 3- -3 -2 11+ -2  8  0
Curve Equation t Generators 20988c1 [0,0,0,-620544,188151716] 1 [452:106:1]

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

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