William Stein's table of weight 2 newforms

Level 20

20 = 22 · 5

Galois conjugacy classes of newforms of level 20 [elliptic curves of conductor 20]

Class L Sign Degree Atkin-Lehner Traces of eigenvalues
20A + 1 2- 5+   0  -2  -1   2   0   2  -6  -4

Data from The Modular Forms Database by William Stein.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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