Cremona's table of elliptic curves

1206 = 2 · 3² · 67

Class	r	Atkin-Lehner	Eigenvalues
1206a (1 curve)	1	2+ 3+ 67+	2+ 3+  1 -1 -2  0 -6  4
Curve Equation t Generators 1206a1 [1,-1,0,-24,52] 1 [2:2:1]
1206b (2 curves)	0	2+ 3- 67+	2+ 3- -2  2  4  0 -6  4
Curve Equation t 1206b1 [1,-1,0,-333,-2255] 2 1206b2 [1,-1,0,-243,-3569] 2
1206c (1 curve)	0	2- 3+ 67+	2- 3+ -1 -1  2  0  6  4
Curve Equation t 1206c1 [1,-1,1,-218,-1187] 1
1206d (1 curve)	1	2- 3- 67+	2- 3- -1 -3  0 -4 -2 -2
Curve Equation t Generators 1206d1 [1,-1,1,-23,303] 1 [11:-42:1]
1206e (4 curves)	1	2- 3- 67+	2- 3- -2  0 -4 -2 -2 -4
Curve Equation t Generators 1206e1 [1,-1,1,-86,101] 4 [-9:13:1] 1206e2 [1,-1,1,-806,-8539] 4 [-17:13:1] 1206e3 [1,-1,1,-12866,-558475] 2 [441:8689:1] 1206e4 [1,-1,1,-266,-20203] 2 [37:121:1]
1206f (3 curves)	0	2- 3- 67-	2- 3-  3 -1  0 -4  6  2
Curve Equation t 1206f1 [1,-1,1,-1301,-18691] 1 1206f2 [1,-1,1,7204,-28897] 3 1206f3 [1,-1,1,-92291,11845379] 3

Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

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