z 18 + 17 z 16 + 119 z 14 + 443 z 12 + 946 z 10 + 1166 z 8 + 792 z 6 + 264 z 4 + 33 z 2 + 1 {\displaystyle z^{18}+17z^{16}+119z^{14}+443z^{12}+946z^{10}+1166z^{8}+792z^{6}+264z^{4}+33z^{2}+1}
