Cremona's table of elliptic curves

Conductor 19881

19881 = 32 · 472

Isogeny classes of curves of conductor 19881 [newforms of level 19881]

Class r Atkin-Lehner Eigenvalues
19881a (2 curves) 0 3+ 47-  0 3+  0 -4  0  5  0 -1
19881b (2 curves) 0 3+ 47-  0 3+  0 -4  0 -5  0  1
19881c (1 curve) 0 3+ 47-  2 3+ -3  1  3  0  0  4
19881d (1 curve) 0 3+ 47- -2 3+  3  1 -3  0  0  4
19881e (1 curve) 1 3- 47-  0 3- -1 -3 -3  4 -8  6
19881f (1 curve) 1 3- 47-  0 3-  3  1 -3 -6  6  6
19881g (1 curve) 1 3- 47-  0 3- -3  1  3  6  6 -6
19881h (1 curve) 1 3- 47-  0 3-  4  0 -6  5 -2  3
19881i (1 curve) 1 3- 47-  0 3- -4  0  6 -5 -2 -3
19881j (2 curves) 1 3- 47-  1 3-  0  4  0 -6  6 -2
19881k (4 curves) 1 3- 47-  1 3-  2  0  4  2 -2  0
19881l (1 curve) 1 3- 47-  1 3-  3 -2  6 -3 -3 -4
19881m (1 curve) 1 3- 47-  1 3- -3 -2 -6  3 -3  4
19881n (1 curve) 1 3- 47-  2 3- -3 -3 -5 -2  6  6
19881o (1 curve) 1 3- 47- -2 3- -1 -3  1  2 -2 -6

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

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