Cremona's table of elliptic curves

1806 = 2 · 3 · 7 · 43

Class	r	Atkin-Lehner	Eigenvalues
1806a (1 curve)	1	2+ 3+ 7+ 43+	2+ 3+  1 7+ -2 -3  3  5
Curve Equation t Generators 1806a1 [1,1,0,-842,-9732] 1 [-17:14:1]
1806b (1 curve)	1	2+ 3+ 7- 43-	2+ 3+  1 7-  0 -1 -3 -5
Curve Equation t Generators 1806b1 [1,1,0,-37,-83] 1 [-3:5:1]
1806c (2 curves)	1	2+ 3- 7+ 43-	2+ 3-  0 7+  0 -2 -2  0
Curve Equation t Generators 1806c1 [1,0,1,-906,10876] 2 [8:60:1] 1806c2 [1,0,1,-14666,682364] 2 [117:-815:1]
1806d (1 curve)	1	2+ 3- 7+ 43-	2+ 3- -3 7+  0  7 -5 -3
Curve Equation t Generators 1806d1 [1,0,1,-14655,-684038] 1 [-70:36:1]
1806e (1 curve)	1	2+ 3- 7- 43+	2+ 3-  1 7- -6  1 -7 -1
Curve Equation t Generators 1806e1 [1,0,1,-6423,-116006] 1 [-22:132:1]
1806f (4 curves)	1	2+ 3- 7- 43+	2+ 3- -2 7-  0 -2  2 -4
Curve Equation t Generators 1806f1 [1,0,1,13,14] 2 [8:21:1] 1806f2 [1,0,1,-67,110] 4 [-5:20:1] 1806f3 [1,0,1,-487,-4090] 2 [-12:13:1] 1806f4 [1,0,1,-927,10774] 4 [-19:156:1]
1806g (3 curves)	0	2+ 3- 7- 43-	2+ 3-  3 7-  0  5  3 -7
Curve Equation t 1806g1 [1,0,1,-157,722] 3 1806g2 [1,0,1,-1642,-25468] 3 1806g3 [1,0,1,-132577,-18591148] 1
1806h (1 curve)	0	2- 3+ 7+ 43+	2- 3+  3 7+  6  1 -3  1
Curve Equation t 1806h1 [1,1,1,-1664354,491470703] 1
1806i (1 curve)	1	2- 3+ 7+ 43-	2- 3+  1 7+ -4 -3 -1 -1
Curve Equation t Generators 1806i1 [1,1,1,-10990,-399061] 1 [-71:207:1]
1806j (2 curves)	1	2- 3+ 7- 43+	2- 3+  0 7- -4 -2 -2 -8
Curve Equation t Generators 1806j1 [1,1,1,7,-457] 2 [9:16:1] 1806j2 [1,1,1,-853,-9745] 2 [-17:22:1]
1806k (1 curve)	1	2- 3+ 7- 43+	2- 3+ -3 7-  2 -5  1  1
Curve Equation t Generators 1806k1 [1,1,1,-5887,171365] 1 [-5:450:1]
1806l (1 curve)	1	2- 3- 7+ 43+	2- 3- -3 7+ -2 -1  3 -5
Curve Equation t Generators 1806l1 [1,0,0,-97,329] 1 [2:11:1]
1806m (1 curve)	0	2- 3- 7- 43+	2- 3-  3 7-  2 -3 -1  3
Curve Equation t 1806m1 [1,0,0,-4,2] 1
1806n (1 curve)	1	2- 3- 7- 43-	2- 3- -3 7- -4 -3 -7  1
Curve Equation t Generators 1806n1 [1,0,0,-25757,320049] 1 [-116:1381:1]

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