“…Ahlgren [1,Theorem 3] generalized this result to Γ 0 (p) for p ∈ {2, 3, 5, 7, 13}. In [7, Theorem 3.2] and [18,Theorem 1.1], they showed that similar results hold for Γ + 0 (p)(which is the subgroup of PSL 2 (R) generated by Γ 0 (p) and Atkin-Lehner involution W p = 0 −1 p 0 ) when p ∈ {2, 3,5,7,11,13,17,19,23,29,31,41,47, 59, 71}. For example, in [18,Theorem 1.1], they showed that if the genus of X + 0 (N ) is zero, then…”