Cremona's table of elliptic curves

19504 = 2⁴ · 23 · 53

Class	r	Atkin-Lehner	Eigenvalues
19504a (1 curve)	2	2+ 23+ 53-	2+  1  0 -2 -4 -5 -6 -2
Curve Equation t Generators 19504a1 [0,1,0,-228,-2989] 1 [121:1325:1]&[2449:121217:1]
19504b (1 curve)	0	2+ 23+ 53-	2+ -2  3 -4  0  3  2 -8
Curve Equation t 19504b1 [0,1,0,-139,3564] 1
19504c (1 curve)	2	2+ 23+ 53-	2+ -2 -3 -2 -4  1 -6  4
Curve Equation t Generators 19504c1 [0,1,0,-192,964] 1 [480:-1594:27]&[-6:44:1]
19504d (1 curve)	0	2+ 23- 53+	2+ -2  1  4 -4 -5  2  0
Curve Equation t 19504d1 [0,1,0,45,352] 1
19504e (1 curve)	1	2+ 23- 53-	2+ -2 -1  4  0  3  6  0
Curve Equation t Generators 19504e1 [0,1,0,4,28] 1 [-2:4:1]
19504f (1 curve)	1	2- 23+ 53-	2-  0 -1 -2  0 -1 -4  4
Curve Equation t Generators 19504f1 [0,0,0,-8,11] 1 [1:2:1]
19504g (1 curve)	1	2- 23+ 53-	2-  1 -2  2  4 -1  0  4
Curve Equation t Generators 19504g1 [0,1,0,6,1127] 1 [-22:265:8]
19504h (1 curve)	1	2- 23+ 53-	2- -2  1  2  4  5 -6  4
Curve Equation t Generators 19504h1 [0,1,0,-67120680,-324891212108] 1 [3566841889374116839298453726574:215337472076501982822449653612544:304117409033959499010863137]
19504i (1 curve)	1	2- 23- 53+	2- -3  4  0  2 -1  6 -4
Curve Equation t Generators 19504i1 [0,0,0,-73,-245] 1 [10:5:1]

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