a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 4 a 5 z 9 + 2 a 3 z 9 + a 8 z 8 − 3 a 6 z 8 − 3 a 4 z 8 + a 2 z 8 − 12 a 7 z 7 − 24 a 5 z 7 − 12 a 3 z 7 − 6 a 8 z 6 − 7 a 6 z 6 − 7 a 4 z 6 − 6 a 2 z 6 + 22 a 7 z 5 + 43 a 5 z 5 + 21 a 3 z 5 + 11 a 8 z 4 + 23 a 6 z 4 + 21 a 4 z 4 + 9 a 2 z 4 − 16 a 7 z 3 − 31 a 5 z 3 − 17 a 3 z 3 − 2 a z 3 − 7 a 8 z 2 − 15 a 6 z 2 − 13 a 4 z 2 − 6 a 2 z 2 − z 2 + 5 a 7 z + 10 a 5 z + 6 a 3 z + a z + a 8 + 2 a 6 + a 4 + 1 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+4a^{5}z^{9}+2a^{3}z^{9}+a^{8}z^{8}-3a^{6}z^{8}-3a^{4}z^{8}+a^{2}z^{8}-12a^{7}z^{7}-24a^{5}z^{7}-12a^{3}z^{7}-6a^{8}z^{6}-7a^{6}z^{6}-7a^{4}z^{6}-6a^{2}z^{6}+22a^{7}z^{5}+43a^{5}z^{5}+21a^{3}z^{5}+11a^{8}z^{4}+23a^{6}z^{4}+21a^{4}z^{4}+9a^{2}z^{4}-16a^{7}z^{3}-31a^{5}z^{3}-17a^{3}z^{3}-2az^{3}-7a^{8}z^{2}-15a^{6}z^{2}-13a^{4}z^{2}-6a^{2}z^{2}-z^{2}+5a^{7}z+10a^{5}z+6a^{3}z+az+a^{8}+2a^{6}+a^{4}+1}