z 30 + 29 z 28 + 377 z 26 + 2901 z 24 + 14697 z 22 + 51589 z 20 + 128593 z 18 + 229517 z 16 + 292077 z 14 + 260729 z 12 + 158389 z 10 + 62305 z 8 + 14637 z 6 + 1785 z 4 + 85 z 2 + 1 {\displaystyle z^{30}+29z^{28}+377z^{26}+2901z^{24}+14697z^{22}+51589z^{20}+128593z^{18}+229517z^{16}+292077z^{14}+260729z^{12}+158389z^{10}+62305z^{8}+14637z^{6}+1785z^{4}+85z^{2}+1}
