Cremona's table of elliptic curves

12236 = 2² · 7 · 19 · 23

Class	r	Atkin-Lehner	Eigenvalues
12236a (1 curve)	1	2- 7+ 19- 23+	2- -1  0 7+  2  5 -4 19-
Curve Equation t Generators 12236a1 [0,-1,0,-138,2461] 1 [27:133:1]
12236b (2 curves)	0	2- 7+ 19- 23-	2-  2 -2 7+ -4 -2  6 19-
Curve Equation t 12236b1 [0,-1,0,-369,3014] 2 12236b2 [0,-1,0,-6004,181080] 2
12236c (1 curve)	0	2- 7+ 19- 23-	2-  3  3 7+  6 -1 -5 19-
Curve Equation t 12236c1 [0,0,0,-1756,28877] 1
12236d (1 curve)	1	2- 7- 19+ 23+	2-  1 -1 7-  2 -1  3 19+
Curve Equation t Generators 12236d1 [0,1,0,119,196] 1 [0:14:1]
12236e (1 curve)	0	2- 7- 19+ 23-	2-  3  1 7-  2  7  1 19+
Curve Equation t 12236e1 [0,0,0,-52,-1423] 1
12236f (2 curves)	1	2- 7- 19- 23-	2-  0 -4 7- -4 -2  4 19-
Curve Equation t Generators 12236f1 [0,0,0,-52,-135] 2 [-4:3:1] 12236f2 [0,0,0,-167,670] 2 [-9:38:1]
12236g (1 curve)	1	2- 7- 19- 23-	2- -1 -2 7-  4  5 -2 19-
Curve Equation t Generators 12236g1 [0,-1,0,-294,-2027] 1 [31:133:1]

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