a 16 z 6 − a 16 z 4 + 5 a 15 z 7 − 10 a 15 z 5 + 4 a 15 z 3 + a 15 z + 9 a 14 z 8 − 20 a 14 z 6 + 11 a 14 z 4 − 2 a 14 z 2 + 7 a 13 z 9 − 5 a 13 z 7 − 17 a 13 z 5 + 14 a 13 z 3 − 2 a 13 z + 2 a 12 z 10 + 17 a 12 z 8 − 51 a 12 z 6 + 43 a 12 z 4 − 15 a 12 z 2 + 13 a 11 z 9 − 18 a 11 z 7 − 3 a 11 z 5 + 7 a 11 z 3 + a 11 z + 2 a 10 z 10 + 15 a 10 z 8 − 40 a 10 z 6 + 36 a 10 z 4 − 11 a 10 z 2 + 6 a 9 z 9 − 2 a 9 z 7 − 7 a 9 z 5 + 9 a 9 z 3 − 3 a 9 z + a 9 z − 1 + 7 a 8 z 8 − 7 a 8 z 6 + a 8 z 4 + 3 a 8 z 2 − a 8 + 6 a 7 z 7 − 10 a 7 z 5 + 10 a 7 z 3 − 6 a 7 z + a 7 z − 1 + 3 a 6 z 6 − 4 a 6 z 4 + a 6 z 2 + a 5 z 5 − 2 a 5 z 3 + a 5 z {\displaystyle a^{16}z^{6}-a^{16}z^{4}+5a^{15}z^{7}-10a^{15}z^{5}+4a^{15}z^{3}+a^{15}z+9a^{14}z^{8}-20a^{14}z^{6}+11a^{14}z^{4}-2a^{14}z^{2}+7a^{13}z^{9}-5a^{13}z^{7}-17a^{13}z^{5}+14a^{13}z^{3}-2a^{13}z+2a^{12}z^{10}+17a^{12}z^{8}-51a^{12}z^{6}+43a^{12}z^{4}-15a^{12}z^{2}+13a^{11}z^{9}-18a^{11}z^{7}-3a^{11}z^{5}+7a^{11}z^{3}+a^{11}z+2a^{10}z^{10}+15a^{10}z^{8}-40a^{10}z^{6}+36a^{10}z^{4}-11a^{10}z^{2}+6a^{9}z^{9}-2a^{9}z^{7}-7a^{9}z^{5}+9a^{9}z^{3}-3a^{9}z+a^{9}z^{-1}+7a^{8}z^{8}-7a^{8}z^{6}+a^{8}z^{4}+3a^{8}z^{2}-a^{8}+6a^{7}z^{7}-10a^{7}z^{5}+10a^{7}z^{3}-6a^{7}z+a^{7}z^{-1}+3a^{6}z^{6}-4a^{6}z^{4}+a^{6}z^{2}+a^{5}z^{5}-2a^{5}z^{3}+a^{5}z}
