Cremona's table of elliptic curves

40020 = 2² · 3 · 5 · 23 · 29

Class	r	Atkin-Lehner	Eigenvalues
40020a (1 curve)	0	2- 3+ 5+ 23+ 29+	2- 3+ 5+ -3  3 -3 -1 -6
Curve Equation t 40020a1 [0,-1,0,-123446,-23936379] 1
40020b (2 curves)	2	2- 3+ 5+ 23+ 29+	2- 3+ 5+ -4  0 -2 -6  4
Curve Equation t Generators 40020b1 [0,-1,0,-821,9270] 2 [23:45:1]&[-27:105:1] 40020b2 [0,-1,0,-1396,-4760] 2 [-10:90:1]&[-6:58:1]
40020c (1 curve)	1	2- 3+ 5+ 23+ 29-	2- 3+ 5+ -1 -1  3 -3 -4
Curve Equation t Generators 40020c1 [0,-1,0,-1466,-25395] 1 [1281:2645:27]
40020d (2 curves)	0	2- 3+ 5- 23- 29+	2- 3+ 5-  0  0  6  6 -4
Curve Equation t 40020d1 [0,-1,0,-599045,-178171518] 2 40020d2 [0,-1,0,-9583420,-11415827768] 2
40020e (2 curves)	0	2- 3- 5+ 23- 29+	2- 3- 5+  5 -6 -4  3  5
Curve Equation t 40020e1 [0,1,0,-8941,321359] 3 40020e2 [0,1,0,-47581,-3759025] 1
40020f (1 curve)	0	2- 3- 5- 23+ 29+	2- 3- 5-  2  4 -1  3  1
Curve Equation t 40020f1 [0,1,0,1835,16775] 1
40020g (1 curve)	1	2- 3- 5- 23+ 29-	2- 3- 5-  1  3 -1  5 -4
Curve Equation t Generators 40020g1 [0,1,0,50,173] 1 [1:15:1]
40020h (1 curve)	1	2- 3- 5- 23+ 29-	2- 3- 5- -3 -4  0  5 -1
Curve Equation t Generators 40020h1 [0,1,0,-1365,-9225] 1 [-15:-90:1]
40020i (2 curves)	1	2- 3- 5- 23- 29+	2- 3- 5-  0  4 -2  2  0
Curve Equation t Generators 40020i1 [0,1,0,-73205,7599228] 2 [133:483:1] 40020i2 [0,1,0,-73780,7473188] 2 [128:378:1]
40020j (1 curve)	1	2- 3- 5- 23- 29+	2- 3- 5- -1 -1  1  7  6
Curve Equation t Generators 40020j1 [0,1,0,108050,8592473] 1 [316:8625:1]
40020k (1 curve)	1	2- 3- 5- 23- 29+	2- 3- 5- -1  4 -4 -3  1
Curve Equation t Generators 40020k1 [0,1,0,-36805,2671223] 1 [-22:1863:1]
40020l (1 curve)	2	2- 3- 5- 23- 29-	2- 3- 5- -3 -5 -5 -7  0
Curve Equation t Generators 40020l1 [0,1,0,-19370,1780425] 1 [-170:435:1]&[178:-2001:1]

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