z 20 + 19 z 18 + 152 z 16 + 665 z 14 + 1729 z 12 + 2718 z 10 + 2518 z 8 + 1288 z 6 + 329 z 4 + 35 z 2 + 1 {\displaystyle z^{20}+19z^{18}+152z^{16}+665z^{14}+1729z^{12}+2718z^{10}+2518z^{8}+1288z^{6}+329z^{4}+35z^{2}+1}
