Cremona's table of elliptic curves

3280 = 2⁴ · 5 · 41

Class	r	Atkin-Lehner	Eigenvalues
3280a (2 curves)	0	2+ 5- 41+	2+  0 5- -2 -4  4  2  8
Curve Equation t 3280a1 [0,0,0,-22907,-1334406] 2 3280a2 [0,0,0,-21907,-1456206] 2
3280b (2 curves)	0	2+ 5- 41+	2+  2 5-  2  0  0  8  0
Curve Equation t 3280b1 [0,-1,0,-55,150] 2 3280b2 [0,-1,0,-260,-1408] 2
3280c (2 curves)	0	2+ 5- 41+	2+  2 5- -2  0  0 -4  8
Curve Equation t 3280c1 [0,-1,0,-20,32] 2 3280c2 [0,-1,0,-120,-448] 2
3280d (2 curves)	0	2+ 5- 41+	2+ -2 5- -2  4  4  4 -4
Curve Equation t 3280d1 [0,1,0,-15,-20] 2 3280d2 [0,1,0,-220,-1332] 2
3280e (2 curves)	2	2+ 5- 41+	2+ -2 5- -4 -6 -4 -6 -6
Curve Equation t Generators 3280e1 [0,1,0,-80,100] 2 [-6:20:1]&[-5:20:1] 3280e2 [0,1,0,-1080,13300] 2 [-30:140:1]&[-22:164:1]
3280f (4 curves)	1	2+ 5- 41-	2+  0 5-  0 -4  6 -2 -4
Curve Equation t Generators 3280f1 [0,0,0,-47,14] 2 [-2:10:1] 3280f2 [0,0,0,-547,4914] 4 [5:48:1] 3280f3 [0,0,0,-8747,314874] 2 [450:231:8] 3280f4 [0,0,0,-347,8554] 4 [10:78:1]
3280g (2 curves)	1	2+ 5- 41-	2+  0 5- -2  2 -2 -4  2
Curve Equation t Generators 3280g1 [0,0,0,-31307,1717706] 2 [157:820:1] 3280g2 [0,0,0,-156307,-22257294] 2 [-233:1230:1]
3280h (2 curves)	1	2- 5+ 41-	2-  2 5+  2 -2 -6 -6  2
Curve Equation t Generators 3280h1 [0,-1,0,-256,0] 2 [18:30:1] 3280h2 [0,-1,0,1024,-1024] 2 [370:7134:1]
3280i (2 curves)	1	2- 5+ 41-	2- -2 5+ -2 -6  2  2  6
Curve Equation t Generators 3280i1 [0,1,0,-336,2260] 2 [2:40:1] 3280i2 [0,1,0,-256,3444] 2 [4:50:1]
3280j (4 curves)	1	2- 5- 41+	2-  2 5- -2  0 -4  0 -8
Curve Equation t Generators 3280j1 [0,-1,0,-2680,-51600] 2 [-30:30:1] 3280j2 [0,-1,0,-42680,-3379600] 2 [250:1230:1] 3280j3 [0,-1,0,-24680,1478000] 2 [10:1110:1] 3280j4 [0,-1,0,-50280,-2085520] 2 [-1266:11026:27]
3280k (2 curves)	1	2- 5- 41+	2- -2 5- -2  0 -4  4  0
Curve Equation t Generators 3280k1 [0,1,0,-40,-12] 2 [-4:10:1] 3280k2 [0,1,0,-440,-3692] 2 [-12:2:1]
3280l (2 curves)	0	2- 5- 41-	2-  0 5-  2  6 -2  8  6
Curve Equation t 3280l1 [0,0,0,-227,-1054] 2 3280l2 [0,0,0,-3427,-77214] 2
3280m (4 curves)	0	2- 5- 41-	2-  0 5-  4  0 -2 -6  0
Curve Equation t 3280m1 [0,0,0,-347,-2486] 2 3280m2 [0,0,0,-427,-1254] 4 3280m3 [0,0,0,-3707,85994] 4 3280m4 [0,0,0,1573,-9654] 4
3280n (4 curves)	0	2- 5- 41-	2-  0 5- -4  0 -2  2  0
Curve Equation t 3280n1 [0,0,0,-22187,1206234] 2 3280n2 [0,0,0,-349867,79652826] 4 3280n3 [0,0,0,-5597867,5097790426] 4 3280n4 [0,0,0,-344747,82097114] 4

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