Cremona's table of elliptic curves

21280 = 2⁵ · 5 · 7 · 19

Class	r	Atkin-Lehner	Eigenvalues
21280a (1 curve)	2	2+ 5+ 7+ 19-	2+ -1 5+ 7+  2 -4 -3 19-
Curve Equation t Generators 21280a1 [0,-1,0,-1,-79] 1 [5:4:1]&[8:19:1]
21280b (1 curve)	0	2+ 5+ 7+ 19-	2+ -2 5+ 7+ -1  3 -7 19-
Curve Equation t 21280b1 [0,1,0,-17976,-938360] 1
21280c (2 curves)	1	2+ 5+ 7- 19-	2+  0 5+ 7-  0  0 -2 19-
Curve Equation t Generators 21280c1 [0,0,0,-1433,22132] 2 [19:42:1] 21280c2 [0,0,0,-23308,1369632] 2 [106:300:1]
21280d (1 curve)	1	2+ 5+ 7- 19-	2+  0 5+ 7- -5  5  3 19-
Curve Equation t Generators 21280d1 [0,0,0,-126923,-17404382] 1 [22343442:937924588:12167]
21280e (1 curve)	1	2+ 5+ 7- 19-	2+ -1 5+ 7- -3 -1 -7 19-
Curve Equation t Generators 21280e1 [0,-1,0,-4061,106261] 1 [35:76:1]
21280f (4 curves)	0	2+ 5- 7+ 19+	2+  0 5- 7+  0  2 -2 19+
Curve Equation t 21280f1 [0,0,0,-97,-264] 4 21280f2 [0,0,0,253,-1734] 2 21280f3 [0,0,0,-572,5056] 2 21280f4 [0,0,0,-1427,-20746] 2
21280g (1 curve)	0	2+ 5- 7+ 19+	2+  0 5- 7+ -3  1 -7 19+
Curve Equation t 21280g1 [0,0,0,-1427,-22874] 1
21280h (1 curve)	1	2+ 5- 7+ 19-	2+  1 5- 7+  0  0 -3 19-
Curve Equation t Generators 21280h1 [0,1,0,-39198705,-94474773025] 1 [954030:176303125:27]
21280i (1 curve)	1	2+ 5- 7+ 19-	2+  1 5- 7+  0  0  5 19-
Curve Equation t Generators 21280i1 [0,1,0,-1905,42335] 1 [58:361:1]
21280j (1 curve)	1	2+ 5- 7- 19+	2+ -1 5- 7-  0  0 -3 19+
Curve Equation t Generators 21280j1 [0,-1,0,-39198705,94474773025] 1 [4735:122500:1]
21280k (1 curve)	1	2+ 5- 7- 19+	2+ -1 5- 7-  0  0  5 19+
Curve Equation t Generators 21280k1 [0,-1,0,-1905,-42335] 1 [1407:52732:1]
21280l (1 curve)	1	2+ 5- 7- 19+	2+ -2 5- 7-  5 -1  3 19+
Curve Equation t Generators 21280l1 [0,1,0,0,28] 1 [3:8:1]
21280m (4 curves)	0	2+ 5- 7- 19-	2+  0 5- 7-  0  2 -2 19-
Curve Equation t 21280m1 [0,0,0,-97,264] 4 21280m2 [0,0,0,253,1734] 2 21280m3 [0,0,0,-572,-5056] 2 21280m4 [0,0,0,-1427,20746] 2
21280n (1 curve)	2	2+ 5- 7- 19-	2+ -1 5- 7- -6 -4 -5 19-
Curve Equation t Generators 21280n1 [0,-1,0,-50625,10244977] 1 [-291:500:1]&[-216:3325:1]
21280o (2 curves)	0	2- 5+ 7+ 19+	2-  0 5+ 7+  0  0 -2 19+
Curve Equation t 21280o1 [0,0,0,-1433,-22132] 2 21280o2 [0,0,0,-23308,-1369632] 2
21280p (1 curve)	0	2- 5+ 7+ 19+	2-  0 5+ 7+  5  5  3 19+
Curve Equation t 21280p1 [0,0,0,-126923,17404382] 1
21280q (1 curve)	0	2- 5+ 7+ 19+	2-  1 5+ 7+  3 -1 -7 19+
Curve Equation t 21280q1 [0,1,0,-4061,-106261] 1
21280r (2 curves)	1	2- 5+ 7+ 19-	2- -2 5+ 7+  0  6 -2 19-
Curve Equation t Generators 21280r1 [0,1,0,14,60] 2 [2:10:1] 21280r2 [0,1,0,-161,655] 2 [-14:19:1]
21280s (1 curve)	1	2- 5+ 7- 19+	2-  1 5+ 7- -2 -4 -3 19+
Curve Equation t Generators 21280s1 [0,1,0,-1,79] 1 [-3:8:1]
21280t (2 curves)	1	2- 5+ 7- 19+	2-  2 5+ 7-  0  6 -2 19+
Curve Equation t Generators 21280t1 [0,-1,0,14,-60] 2 [48:330:1] 21280t2 [0,-1,0,-161,-655] 2 [1317:8756:27]
21280u (1 curve)	1	2- 5+ 7- 19+	2-  2 5+ 7-  1  3 -7 19+
Curve Equation t Generators 21280u1 [0,-1,0,-17976,938360] 1 [101:378:1]
21280v (1 curve)	1	2- 5- 7+ 19+	2-  1 5- 7+  6 -4 -5 19+
Curve Equation t Generators 21280v1 [0,1,0,-50625,-10244977] 1 [541:11000:1]
21280w (1 curve)	0	2- 5- 7+ 19-	2-  2 5- 7+ -5 -1  3 19-
Curve Equation t 21280w1 [0,-1,0,0,-28] 1
21280x (1 curve)	0	2- 5- 7+ 19-	2-  3 5- 7+  4 -4 -3 19-
Curve Equation t 21280x1 [0,0,0,-892,-10624] 1
21280y (1 curve)	2	2- 5- 7- 19+	2- -3 5- 7- -4 -4 -3 19+
Curve Equation t Generators 21280y1 [0,0,0,-892,10624] 1 [-22:140:1]&[-12:140:1]
21280z (1 curve)	1	2- 5- 7- 19-	2-  0 5- 7-  3  1 -7 19-
Curve Equation t Generators 21280z1 [0,0,0,-1427,22874] 1 [10:98:1]

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