Characteristic polynomials of the Hecke operator T2 on Gamma0(9) for weights up to 28

{4, x}

{6, -6 + x}

{8, (6 + x)*(-360 + x^2)}

{10, (-36 + x)*x*(18 + x)}

{12, (-24 + x)*(78 + x)*(-2520 + x^2)}

{14, (-12 + x)*(-7920 + x^2)*(-16992 - 54*x + x^2)}

{16, (-234 + x)*(-72 + x)*x*(216 + x)*(-119880 + x^2)}

{18, (-528 + x)*(204 + x)*(-131040 + x^2)*(-42912 + 594*x + x^2)}

{20, (-1104 + x)*(456 + x)*(-664128 + 702*x + x^2)* (108573696000 - 1446840*x^2 + x^4)}

{22, (-2844 + x)*(-288 + x)*x*(1728 + x)*(-3998160 + x^2)* (-2464992 + 666*x + x^2)}

{24, (1128 + x)*(-4387968 - 1242*x + x^2)*(-20468736 + 1080*x + x^2)* (78875596800000 - 26332200*x^2 + x^4)}

{26, (-48 + x)*(-46305792 - 324*x + x^2)* (172099067904 - 88941600*x - 3678*x^2 + x^3)* (2309405943398400 - 135840960*x^2 + x^4)}

{28, x*(-195250176 - 8280*x + x^2)*(-131632128 + 3168*x + x^2)* (-2628288 + 21582*x + x^2)*(28239605517312000 - 414846360*x^2 + x^4)}