Cremona's table of elliptic curves

18081 = 3² · 7² · 41

Class	r	Atkin-Lehner	Eigenvalues
18081a (2 curves)	0	3+ 7- 41+	0 3+  0 7- -3 -2  3 -2
Curve Equation t 18081a1 [0,0,1,-7350,-289235] 1 18081a2 [0,0,1,52920,1974908] 1
18081b (1 curve)	0	3+ 7- 41+	1 3+  3 7-  4 -3  6 -6
Curve Equation t 18081b1 [1,-1,0,-933,34838] 1
18081c (1 curve)	0	3+ 7- 41+	-1 3+  3 7- -4  3  6  6
Curve Equation t 18081c1 [1,-1,1,-5081,440878] 1
18081d (2 curves)	1	3+ 7- 41-	0 3+  0 7-  3 -2 -3 -2
Curve Equation t Generators 18081d1 [0,0,1,5880,-73145] 1 [91:1102:1] 18081d2 [0,0,1,-66150,7809338] 1 [924:27121:1]
18081e (1 curve)	1	3+ 7- 41-	1 3+ -3 7-  4  3 -6  6
Curve Equation t Generators 18081e1 [1,-1,0,-45726,-11857987] 1 [61220:1108493:125]
18081f (1 curve)	1	3+ 7- 41-	-1 3+ -3 7- -4 -3 -6 -6
Curve Equation t Generators 18081f1 [1,-1,1,-104,-1256] 1 [58:-460:1]
18081g (1 curve)	1	3- 7+ 41-	-2 3-  0 7+ -4 -1 -4  7
Curve Equation t Generators 18081g1 [0,0,1,-488775,-131526180] 1 [1421:45202:1]
18081h (1 curve)	1	3- 7- 41+	0 3- -2 7- -5  4 -5  2
Curve Equation t Generators 18081h1 [0,0,1,294,-4545] 1 [35:220:1]
18081i (4 curves)	1	3- 7- 41+	1 3-  2 7-  0 -2 -2  4
Curve Equation t Generators 18081i1 [1,-1,0,1314,-65745] 2 [20820:366645:64] 18081i2 [1,-1,0,-18531,-887328] 4 [-164112:687396:2197] 18081i3 [1,-1,0,-289746,-59957955] 2 [-37350403870:18037779505:120553784] 18081i4 [1,-1,0,-64836,5363847] 2 [66:1137:1]
18081j (1 curve)	1	3- 7- 41+	1 3- -3 7-  2 -5 -2  2
Curve Equation t Generators 18081j1 [1,-1,0,-3096,135841] 1 [-40:461:1]
18081k (1 curve)	1	3- 7- 41+	-2 3-  0 7- -4  1  4 -7
Curve Equation t Generators 18081k1 [0,0,1,-9975,383458] 1 [43:184:1]
18081l (1 curve)	0	3- 7- 41-	1 3-  3 7-  6  7 -6  6
Curve Equation t 18081l1 [1,-1,0,1296972,169716217] 1
18081m (1 curve)	0	3- 7- 41-	-1 3- -1 7-  6 -3 -6 -6
Curve Equation t 18081m1 [1,-1,1,311557,-596797680] 1
18081n (2 curves)	0	3- 7- 41-	2 3- -4 7-  3  6  3  0
Curve Equation t 18081n1 [0,0,1,-4557,126481] 1 18081n2 [0,0,1,8673,-8301029] 1

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