William Stein's table of weight 2 newforms

Level 657

657 = 32 · 73

Galois conjugacy classes of newforms of level 657 [elliptic curves of conductor 657]

Class L Sign Degree Atkin-Lehner Traces of eigenvalues
657B + 1 3- 73+  -1   0   4   2   4  -2   0  -4
657D + 1 3- 73+   2   0   1   2   4  -2   3  -1
657A - 1 3- 73-  -1   0  -2   2   2  -6  -2   8
657C - 1 3- 73-   0   0   3  -4   0  -4  -3  -1
657F + 2 3- 73+   3   0   3  -6   3   1   0   2
657E - 2 3- 73-  -1   0   1  -2  -7  -1   4 -14
657H - 4 3+ 73+   0   0   0 -12   0  -4   0  -8
657G - 4 3- 73-  -1   0  -9  -4  -2   6  -9   1
657I + 6 3- 73+   1   0  -5   8   2   4   3   5
657J + 8 3+ 73-   0   0   0  16   0   8   0   4

Data from The Modular Forms Database by William Stein.
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