Cremona's table of elliptic curves

21413 = 7² · 19 · 23

Class	r	Atkin-Lehner	Eigenvalues
21413a (2 curves)	0	7- 19+ 23+	-1 -2  0 7-  4  6  4 19+
Curve Equation t 21413a1 [1,0,0,-196148,34910623] 2 21413a2 [1,0,0,-3177063,2179380874] 2
21413b (1 curve)	1	7- 19+ 23-	0 -2  1 7- -1  0  7 19+
Curve Equation t Generators 21413b1 [0,1,1,915,-36228] 1 [24:11:1]
21413c (4 curves)	1	7- 19+ 23-	-1  0 -2 7-  4  2  2 19+
Curve Equation t Generators 21413c1 [1,-1,1,-6061,476452] 4 [-40:828:1] 21413c2 [1,-1,1,-135666,19243256] 4 [2166:11057:8] 21413c3 [1,-1,1,-175111,7173086] 2 [91410:592187:216] 21413c4 [1,-1,1,-2169901,1230833622] 2 [639:9921:1]
21413d (1 curve)	0	7- 19- 23-	2 -2 -1 7-  5  2 -3 19-
Curve Equation t 21413d1 [0,1,1,-16,1649] 1

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

Part of Computational Number Theory
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