Cremona's table of elliptic curves

20748 = 2² · 3 · 7 · 13 · 19

Class	r	Atkin-Lehner	Eigenvalues
20748a (1 curve)	0	2- 3+ 7+ 13+ 19+	2- 3+  0 7+  4 13+  7 19+
Curve Equation t 20748a1 [0,-1,0,9422,214669] 1
20748b (1 curve)	1	2- 3+ 7+ 13+ 19-	2- 3+  0 7+ -2 13+  7 19-
Curve Equation t Generators 20748b1 [0,-1,0,-82538,9520005] 1 [1402:5103:8]
20748c (2 curves)	1	2- 3+ 7+ 13- 19+	2- 3+  0 7+  4 13-  6 19+
Curve Equation t Generators 20748c1 [0,-1,0,-33,-570] 2 [314:1911:8] 20748c2 [0,-1,0,-1268,-16872] 2 [10302:36701:216]
20748d (2 curves)	1	2- 3+ 7+ 13- 19+	2- 3+  2 7+  0 13-  0 19+
Curve Equation t Generators 20748d1 [0,-1,0,-1097,-11742] 2 [-14:26:1] 20748d2 [0,-1,0,-16892,-839400] 2 [457:9310:1]
20748e (2 curves)	0	2- 3+ 7+ 13- 19-	2- 3+  0 7+ -2 13-  0 19-
Curve Equation t 20748e1 [0,-1,0,196527,-6720066] 2 20748e2 [0,-1,0,-803108,-53502984] 2
20748f (1 curve)	0	2- 3+ 7+ 13- 19-	2- 3+  3 7+ -5 13- -6 19-
Curve Equation t 20748f1 [0,-1,0,476,32536] 1
20748g (1 curve)	0	2- 3+ 7+ 13- 19-	2- 3+ -4 7+  0 13-  3 19-
Curve Equation t 20748g1 [0,-1,0,4090,-309459] 1
20748h (2 curves)	1	2- 3+ 7- 13+ 19+	2- 3+ -2 7-  0 13+  0 19+
Curve Equation t Generators 20748h1 [0,-1,0,-2289,42570] 2 [3:189:1] 20748h2 [0,-1,0,-4044,-29736] 2 [-10:98:1]
20748i (2 curves)	1	2- 3+ 7- 13- 19-	2- 3+  2 7-  4 13- -8 19-
Curve Equation t Generators 20748i1 [0,-1,0,-57,162] 2 [-7:13:1] 20748i2 [0,-1,0,-252,-1320] 2 [-10:10:1]
20748j (1 curve)	1	2- 3- 7+ 13+ 19+	2- 3-  4 7+ -3 13+  2 19+
Curve Equation t Generators 20748j1 [0,1,0,-21,1047] 1 [-7:30:1]
20748k (1 curve)	1	2- 3- 7+ 13- 19-	2- 3-  1 7+ -1 13- -2 19-
Curve Equation t Generators 20748k1 [0,1,0,580,-15324] 1 [100:-1026:1]
20748l (1 curve)	1	2- 3- 7+ 13- 19-	2- 3-  2 7+ -3 13- -2 19-
Curve Equation t Generators 20748l1 [0,1,0,723,18207] 1 [-6:117:1]
20748m (2 curves)	0	2- 3- 7- 13+ 19+	2- 3- -2 7- -4 13+  4 19+
Curve Equation t 20748m1 [0,1,0,-5217969,-4589493480] 2 20748m2 [0,1,0,-5250924,-4528619004] 2
20748n (2 curves)	2	2- 3- 7- 13+ 19+	2- 3- -4 7- -4 13+ -6 19+
Curve Equation t Generators 20748n1 [0,1,0,-3305,130104] 2 [-9:399:1]&[-53:399:1] 20748n2 [0,1,0,-63820,6181604] 2 [-289:756:1]&[-100:3402:1]
20748o (2 curves)	1	2- 3- 7- 13+ 19-	2- 3-  0 7- -2 13+  4 19-
Curve Equation t Generators 20748o1 [0,1,0,-142353,20625852] 2 [248:798:1] 20748o2 [0,1,0,-2277668,1322313876] 2 [188430:15029:216]
20748p (1 curve)	1	2- 3- 7- 13+ 19-	2- 3-  0 7- -2 13+ -5 19-
Curve Equation t Generators 20748p1 [0,1,0,62,-19] 1 [5:21:1]
20748q (1 curve)	1	2- 3- 7- 13+ 19-	2- 3-  0 7-  3 13+ -6 19-
Curve Equation t Generators 20748q1 [0,1,0,-27893,-4965993] 1 [841:-23814:1]
20748r (2 curves)	1	2- 3- 7- 13+ 19-	2- 3-  2 7-  2 13+ -6 19-
Curve Equation t Generators 20748r1 [0,1,0,-18932397,-31717531872] 2 [15132:1773954:1] 20748r2 [0,1,0,-302929292,-2029465290060] 2 [166010:6302205:8]
20748s (1 curve)	1	2- 3- 7- 13+ 19-	2- 3- -3 7- -3 13+ -6 19-
Curve Equation t Generators 20748s1 [0,1,0,-92,324] 1 [4:6:1]
20748t (2 curves)	1	2- 3- 7- 13- 19+	2- 3-  0 7-  2 13- -4 19+
Curve Equation t Generators 20748t1 [0,1,0,1421727,1303335504] 2 [-597:15561:1] 20748t2 [0,1,0,-12780188,14971258500] 2 [30616:5321862:1]
20748u (4 curves)	0	2- 3- 7- 13- 19-	2- 3-  0 7-  0 13-  6 19-
Curve Equation t 20748u1 [0,1,0,-13473,664632] 6 20748u2 [0,1,0,-222188,40236996] 6 20748u3 [0,1,0,87927,-1766940] 2 20748u4 [0,1,0,-357908,-14606988] 2

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