Cremona's table of elliptic curves

19998 = 2 · 3² · 11 · 101

Class	r	Atkin-Lehner	Eigenvalues
19998a (2 curves)	0	2+ 3+ 11+ 101-	2+ 3+  0 -2 11+ -2 -2  4
Curve Equation t 19998a1 [1,-1,0,-1527,-25507] 2 19998a2 [1,-1,0,-25287,-1541395] 2
19998b (2 curves)	1	2+ 3+ 11- 101-	2+ 3+  0  2 11- -6 -2  6
Curve Equation t Generators 19998b1 [1,-1,0,-367242,-85563100] 2 [-254169:172484:729] 19998b2 [1,-1,0,-5875782,-5480627176] 2 [-24878016009:12441054113:17779581]
19998c (1 curve)	1	2+ 3+ 11- 101-	2+ 3+ -3  2 11-  6 -2  0
Curve Equation t Generators 19998c1 [1,-1,0,-231,-11629] 1 [61:415:1]
19998d (1 curve)	1	2+ 3- 11+ 101-	2+ 3-  0 -1 11+  4  1 -7
Curve Equation t Generators 19998d1 [1,-1,0,18,1620] 1 [9:45:1]
19998e (2 curves)	1	2+ 3- 11+ 101-	2+ 3-  0  2 11+  4 -2  2
Curve Equation t Generators 19998e1 [1,-1,0,-41202,3227040] 2 [19:1556:1] 19998e2 [1,-1,0,-50292,1705374] 2 [1:1286:1]
19998f (1 curve)	1	2+ 3- 11+ 101-	2+ 3-  2  3 11+  0  3 -3
Curve Equation t Generators 19998f1 [1,-1,0,-4851,-134915] 1 [2453:120197:1]
19998g (1 curve)	1	2+ 3- 11+ 101-	2+ 3- -3  2 11+ -2  4  2
Curve Equation t Generators 19998g1 [1,-1,0,2521179,1058109723] 1 [1747863237:137592161922:300763]
19998h (2 curves)	1	2+ 3- 11- 101+	2+ 3-  0 -4 11- -2  0  0
Curve Equation t Generators 19998h1 [1,-1,0,-207,2349] 2 [6:33:1] 19998h2 [1,-1,0,-4167,104517] 2 [-39:474:1]
19998i (1 curve)	1	2+ 3- 11- 101+	2+ 3- -1 -2 11- -2 -4  6
Curve Equation t Generators 19998i1 [1,-1,0,675,-5243] 1 [23:137:1]
19998j (2 curves)	0	2+ 3- 11- 101-	2+ 3-  0 -1 11- -4 -3  5
Curve Equation t 19998j1 [1,-1,0,-52677,-4640355] 1 19998j2 [1,-1,0,-50607,-5023377] 3
19998k (2 curves)	0	2- 3+ 11+ 101+	2- 3+  0  2 11+ -6  2  6
Curve Equation t 19998k1 [1,-1,1,-40805,3182605] 2 19998k2 [1,-1,1,-652865,203203813] 2
19998l (1 curve)	0	2- 3+ 11+ 101+	2- 3+  3  2 11+  6  2  0
Curve Equation t 19998l1 [1,-1,1,-26,439] 1
19998m (2 curves)	1	2- 3+ 11- 101+	2- 3+  0 -2 11- -2  2  4
Curve Equation t Generators 19998m1 [1,-1,1,-170,1001] 2 [7:7:1] 19998m2 [1,-1,1,-2810,58025] 2 [-45:325:1]
19998n (4 curves)	0	2- 3- 11+ 101-	2- 3-  2  0 11+ -6  6  0
Curve Equation t 19998n1 [1,-1,1,-769559,279394863] 2 19998n2 [1,-1,1,-12566039,17148361263] 4 19998n3 [1,-1,1,-12819479,16420785711] 2 19998n4 [1,-1,1,-201056279,1097348228655] 2
19998o (2 curves)	0	2- 3- 11- 101+	2- 3-  0  2 11-  4  6  0
Curve Equation t 19998o1 [1,-1,1,-50372240,-52155712141] 2 19998o2 [1,-1,1,184658800,-400753750669] 2
19998p (1 curve)	0	2- 3- 11- 101+	2- 3-  3  2 11- -2  0  6
Curve Equation t 19998p1 [1,-1,1,-44501,-3602131] 1
19998q (2 curves)	0	2- 3- 11- 101+	2- 3- -4  2 11-  4  6  6
Curve Equation t 19998q1 [1,-1,1,-662,-4575] 2 19998q2 [1,-1,1,-9752,-368175] 2

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