z 16 + 15 z 14 + 91 z 12 + 286 z 10 + 495 z 8 + 462 z 6 + 210 z 4 + 36 z 2 + 1 {\displaystyle z^{16}+15z^{14}+91z^{12}+286z^{10}+495z^{8}+462z^{6}+210z^{4}+36z^{2}+1}
