Characteristic polynomials of the Hecke operator T5 on Gamma0(18) for weights up to 16

{4, 6 + x}

{6, (-96 + x)*(-66 + x)*(96 + x)}

{8, (-210 + x)*(-114 + x)}

{10, (-384 + x)*(384 + x)*(870 + x)*(2694 + x)}

{12, (-11730 + x)*(-5280 + x)*(3630 + x)*(5280 + x)*(5766 + x)}

{14, (-57450 + x)*(-15936 + x)*(3990 + x)*(15936 + x)*(54654 + x)}

{16, (-314490 + x)*(-263040 + x)*(-114810 + x)*(77646 + x)*(90510 + x)* (263040 + x)}