Cremona's table of elliptic curves

40850 = 2 · 5² · 19 · 43

Class	r	Atkin-Lehner	Eigenvalues
40850a (1 curve)	1	2+ 5+ 19+ 43+	2+ -1 5+  1 -2  3 -3 19+
Curve Equation t Generators 40850a1 [1,1,0,-4100,226000] 1 [-55:565:1]
40850b (1 curve)	2	2+ 5+ 19+ 43-	2+ -2 5+ -3 -4 -2 -3 19+
Curve Equation t Generators 40850b1 [1,0,1,-6926,221748] 1 [-78:576:1]&[47:-49:1]
40850c (1 curve)	0	2+ 5+ 19+ 43-	2+ -2 5+ -4  1  5  6 19+
Curve Equation t 40850c1 [1,0,1,-9701,-370452] 1
40850d (1 curve)	0	2+ 5+ 19+ 43-	2+  3 5+ -3  6  3 -3 19+
Curve Equation t 40850d1 [1,-1,0,75234158,-27077632684] 1
40850e (1 curve)	1	2+ 5+ 19- 43-	2+  2 5+  0 -3  5  6 19-
Curve Equation t Generators 40850e1 [1,1,0,245,3645] 1 [-9:33:1]
40850f (1 curve)	1	2+ 5+ 19- 43-	2+ -2 5+ -4  5 -7 -2 19-
Curve Equation t Generators 40850f1 [1,0,1,2914674,-2281100452] 1 [746:17192:1]
40850g (1 curve)	1	2- 5+ 19+ 43-	2-  2 5+  1 -4  6  1 19+
Curve Equation t Generators 40850g1 [1,1,1,-563,9781] 1 [70:561:8]
40850h (1 curve)	1	2- 5+ 19- 43+	2-  0 5+  3 -6  0  7 19-
Curve Equation t Generators 40850h1 [1,-1,1,-12730,763897] 1 [-11:955:1]
40850i (1 curve)	1	2- 5+ 19- 43+	2-  2 5+ -1  0  2 -3 19-
Curve Equation t Generators 40850i1 [1,1,1,212,781] 1 [25:137:1]
40850j (1 curve)	0	2- 5+ 19- 43-	2-  1 5+  1  2 -7 -7 19-
Curve Equation t 40850j1 [1,0,0,-53713,-4798583] 1
40850k (1 curve)	1	2- 5- 19+ 43+	2-  2 5-  4  1 -5 -6 19+
Curve Equation t Generators 40850k1 [1,1,1,-388,-3119] 1 [25:47:1]
40850l (1 curve)	0	2- 5- 19- 43+	2-  2 5-  4  5  7  2 19-
Curve Equation t 40850l1 [1,1,1,116587,-18202169] 1
40850m (1 curve)	2	2- 5- 19- 43+	2- -2 5-  0 -3 -5 -6 19-
Curve Equation t Generators 40850m1 [1,0,0,6112,443392] 1 [52:-976:1]&[-32:480:1]

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