a 6 z 10 + a 4 z 10 + a 7 z 9 + 5 a 5 z 9 + 4 a 3 z 9 − a 6 z 8 + 6 a 4 z 8 + 7 a 2 z 8 − 2 a 7 z 7 − 12 a 5 z 7 − 3 a 3 z 7 + 7 a z 7 + 3 a 8 z 6 + 3 a 6 z 6 − 16 a 4 z 6 − 12 a 2 z 6 + 4 z 6 + a 9 z 5 + 7 a 7 z 5 + 18 a 5 z 5 − a 3 z 5 − 12 a z 5 + z 5 a − 1 − 6 a 8 z 4 + a 6 z 4 + 19 a 4 z 4 + 6 a 2 z 4 − 6 z 4 − 3 a 9 z 3 − 9 a 7 z 3 − 10 a 5 z 3 + 3 a z 3 − z 3 a − 1 + 2 a 8 z 2 − 5 a 6 z 2 − 10 a 4 z 2 − 2 a 2 z 2 + z 2 + 2 a 9 z + 2 a 7 z + a 5 z + a 3 z + 2 a 6 + 3 a 4 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+a^{7}z^{9}+5a^{5}z^{9}+4a^{3}z^{9}-a^{6}z^{8}+6a^{4}z^{8}+7a^{2}z^{8}-2a^{7}z^{7}-12a^{5}z^{7}-3a^{3}z^{7}+7az^{7}+3a^{8}z^{6}+3a^{6}z^{6}-16a^{4}z^{6}-12a^{2}z^{6}+4z^{6}+a^{9}z^{5}+7a^{7}z^{5}+18a^{5}z^{5}-a^{3}z^{5}-12az^{5}+z^{5}a^{-1}-6a^{8}z^{4}+a^{6}z^{4}+19a^{4}z^{4}+6a^{2}z^{4}-6z^{4}-3a^{9}z^{3}-9a^{7}z^{3}-10a^{5}z^{3}+3az^{3}-z^{3}a^{-1}+2a^{8}z^{2}-5a^{6}z^{2}-10a^{4}z^{2}-2a^{2}z^{2}+z^{2}+2a^{9}z+2a^{7}z+a^{5}z+a^{3}z+2a^{6}+3a^{4}}
