William Stein's table of weight 2 newforms

Level 273

273 = 3 · 7 · 13

Galois conjugacy classes of newforms of level 273 [elliptic curves of conductor 273]

Class L Sign Degree Atkin-Lehner Traces of eigenvalues
273A - 1 3+ 7- 13-  -2  -1  -1   1  -2   1  -4   3
273B + 1 3- 7+ 13+   2   1   1  -1  -2  -1   0   1
273C + 2 3+ 7- 13+   2  -2   0   2   4  -2   4   0
273D - 3 3+ 7+ 13+  -2  -3  -3  -3  -2  -3  -8  -7
273E + 4 3- 7- 13-   1   4  -3   4  -2   4  -2   7

Data from The Modular Forms Database by William Stein.
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