Cremona's table of elliptic curves

30927 = 3 · 13² · 61

Class	r	Atkin-Lehner	Eigenvalues
30927a (2 curves)	1	3+ 13- 61-	1 3+  0  0  0 13- -2 -6
Curve Equation t Generators 30927a1 [1,1,0,-55,-8] 2 [8:8:1] 30927a2 [1,1,0,-640,5959] 2 [18:17:1]
30927b (2 curves)	1	3+ 13- 61-	-1 3+  0  0  0 13- -2  6
Curve Equation t Generators 30927b1 [1,1,1,-9383,29180] 2 [190:2174:1] 30927b2 [1,1,1,-108248,13633004] 2 [212:412:1]
30927c (3 curves)	1	3- 13+ 61-	0 3- -3  1  6 13+  3 -2
Curve Equation t Generators 30927c1 [0,1,1,-10027,565660] 1 [-100:760:1] 30927c2 [0,1,1,81233,-8400635] 1 [173:3295:1] 30927c3 [0,1,1,-2083657,-1167699230] 1 [37444:7240213:1]
30927d (4 curves)	1	3- 13+ 61-	-1 3- -2  0 -4 13+  6  8
Curve Equation t Generators 30927d1 [1,0,0,-3299,67560] 4 [121:1141:1] 30927d2 [1,0,0,-10904,-359841] 4 [-65:307:1] 30927d3 [1,0,0,22051,-2106456] 2 [456:9912:1] 30927d4 [1,0,0,-165539,-25936470] 2 [-234:138:1]

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

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