Cremona's table of elliptic curves

38493 = 3² · 7 · 13 · 47

Class	r	Atkin-Lehner	Eigenvalues
38493a (1 curve)	2	3+ 7- 13+ 47+	-2 3+  0 7-  1 13+ -7 -7
Curve Equation t Generators 38493a1 [0,0,1,-285,141550] 1 [-37:-319:1]&[-44:262:1]
38493b (1 curve)	1	3+ 7- 13+ 47-	2 3+  0 7- -1 13+  7 -7
Curve Equation t Generators 38493b1 [0,0,1,-2565,-3821857] 1 [2162:31209:8]
38493c (1 curve)	0	3- 7+ 13+ 47+	2 3- -4 7+  3 13+  1  7
Curve Equation t 38493c1 [0,0,1,-1767,68341] 1
38493d (1 curve)	1	3- 7+ 13- 47+	1 3- -4 7+  4 13-  0 -1
Curve Equation t Generators 38493d1 [1,-1,0,-54,189] 1 [4:3:1]
38493e (1 curve)	1	3- 7- 13+ 47+	1 3-  3 7-  1 13+ -4  0
Curve Equation t Generators 38493e1 [1,-1,0,-63,378] 1 [38:85:8]
38493f (1 curve)	2	3- 7- 13+ 47-	0 3- -2 7- -3 13+  3 -5
Curve Equation t Generators 38493f1 [0,0,1,1374,27072] 1 [26:-284:1]&[-30:1179:8]
38493g (2 curves)	2	3- 7- 13+ 47-	-1 3-  0 7- -4 13+ -2 -6
Curve Equation t Generators 38493g1 [1,-1,1,-2480,160994] 2 [-48:433:1]&[-202:3737:8] 38493g2 [1,-1,1,-62015,5947796] 2 [174:547:1]&[-258:2302:1]
38493h (3 curves)	1	3- 7- 13- 47-	0 3-  0 7- -3 13- -3 -7
Curve Equation t Generators 38493h1 [0,0,1,-395580,-95763420] 1 [47204:236893:64] 38493h2 [0,0,1,-349410,-118959957] 3 [719:1228:1] 38493h3 [0,0,1,2844690,1814396832] 3 [-568:3919:1]
38493i (1 curve)	1	3- 7- 13- 47-	1 3- -1 7- -3 13- -6 -4
Curve Equation t Generators 38493i1 [1,-1,0,-2535,57122] 1 [26:-104:1]

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

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