z 28 + 27 z 26 + 324 z 24 + 2277 z 22 + 10395 z 20 + 32320 z 18 + 69785 z 16 + 104771 z 14 + 107849 z 12 + 73876 z 10 + 32055 z 8 + 8169 z 6 + 1092 z 4 + 63 z 2 + 1 {\displaystyle z^{28}+27z^{26}+324z^{24}+2277z^{22}+10395z^{20}+32320z^{18}+69785z^{16}+104771z^{14}+107849z^{12}+73876z^{10}+32055z^{8}+8169z^{6}+1092z^{4}+63z^{2}+1}