Cremona's table of elliptic curves

21850 = 2 · 5² · 19 · 23

Class	r	Atkin-Lehner	Eigenvalues
21850a (2 curves)	1	2+ 5+ 19+ 23+	2+  1 5+  2 -3  6  2 19+
Curve Equation t Generators 21850a1 [1,0,1,-10251,133398] 1 [-32382:191556:343] 21850a2 [1,0,1,-3558001,-2583491102] 1 [-3391851347027583585036664825472:1695510556053731237791913631326:3114346163002540129111769153]
21850b (1 curve)	1	2+ 5+ 19+ 23+	2+ -1 5+  2 -5 -2  4 19+
Curve Equation t Generators 21850b1 [1,1,0,-300,-2000] 1 [-9:13:1]
21850c (2 curves)	0	2+ 5+ 19- 23+	2+ -1 5+ -2 -3 -2  0 19-
Curve Equation t 21850c1 [1,1,0,-198225,-33792875] 1 21850c2 [1,1,0,-16022225,-24691632875] 1
21850d (2 curves)	1	2+ 5+ 19- 23-	2+ -1 5+  1  0  4  0 19-
Curve Equation t Generators 21850d1 [1,1,0,-40,320] 1 [16:56:1] 21850d2 [1,1,0,360,-8240] 1 [144:1676:1]
21850e (1 curve)	0	2- 5+ 19+ 23+	2-  3 5+ -2  5  2  2 19+
Curve Equation t 21850e1 [1,-1,1,-329730,71632897] 1
21850f (1 curve)	0	2- 5+ 19+ 23+	2- -3 5+ -2 -1  2 -4 19+
Curve Equation t 21850f1 [1,-1,1,-480,-2103] 1
21850g (1 curve)	1	2- 5+ 19- 23+	2-  1 5+  2  5 -6  4 19-
Curve Equation t Generators 21850g1 [1,0,0,-963,11417] 1 [16:5:1]
21850h (2 curves)	0	2- 5+ 19- 23-	2-  2 5+  4  3  7 -3 19-
Curve Equation t 21850h1 [1,1,1,562,-106469] 1 21850h2 [1,1,1,-153813,-23286469] 1
21850i (2 curves)	0	2- 5- 19- 23+	2-  1 5- -1  0 -4  0 19-
Curve Equation t 21850i1 [1,0,0,-1013,42017] 3 21850i2 [1,0,0,8987,-1047983] 1

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

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