Label Dim. $$A$$ Field CM Traces A-L signs $q$-expansion
$$a_2$$ $$a_3$$ $$a_5$$ $$a_7$$ 2 5 19
1900.2.a.f $$3$$ $$15.172$$ 3.3.257.1 None $$0$$ $$-2$$ $$0$$ $$-2$$ $$-$$ $$-$$ $$+$$ $$q+(-1+\beta _{1})q^{3}+(-1+\beta _{1})q^{7}+(1+\cdots)q^{9}+\cdots$$
1900.2.a.j $$4$$ $$15.172$$ $$\Q(\sqrt{2}, \sqrt{5})$$ None $$0$$ $$0$$ $$0$$ $$0$$ $$-$$ $$-$$ $$+$$ $$q+\beta _{1}q^{3}+(-\beta _{1}-\beta _{3})q^{7}+\beta _{2}q^{9}+\cdots$$