t 7 ZMod ( 0 ) q 21 + t 7 ZMod ( 2 ) q 19 + t 6 ZMod ( 0 ) q 17 + t 5 ZMod ( 0 ) q 17 + t 5 ZMod ( 2 ) q 15 + t 4 ZMod ( 0 ) q 13 + t 3 ZMod ( 0 ) q 13 + t 3 ZMod ( 2 ) q 11 + t 2 ZMod ( 0 ) q 9 + ZMod ( 0 ) q 7 + ZMod ( 0 ) q 5 {\displaystyle t^{7}{\textrm {ZMod}}(0)q^{21}+t^{7}{\textrm {ZMod}}(2)q^{19}+t^{6}{\textrm {ZMod}}(0)q^{17}+t^{5}{\textrm {ZMod}}(0)q^{17}+t^{5}{\textrm {ZMod}}(2)q^{15}+t^{4}{\textrm {ZMod}}(0)q^{13}+t^{3}{\textrm {ZMod}}(0)q^{13}+t^{3}{\textrm {ZMod}}(2)q^{11}+t^{2}{\textrm {ZMod}}(0)q^{9}+{\textrm {ZMod}}(0)q^{7}+{\textrm {ZMod}}(0)q^{5}}