z 30 + 29 z 28 + 377 z 26 + 2900 z 24 + 14674 z 22 + 51359 z 20 + 127282 z 18 + 224826 z 16 + 281144 z 14 + 244074 z 12 + 142208 z 10 + 52844 z 8 + 11649 z 6 + 1365 z 4 + 70 z 2 + 1 {\displaystyle z^{30}+29z^{28}+377z^{26}+2900z^{24}+14674z^{22}+51359z^{20}+127282z^{18}+224826z^{16}+281144z^{14}+244074z^{12}+142208z^{10}+52844z^{8}+11649z^{6}+1365z^{4}+70z^{2}+1}