a 3 z 9 + a z 9 + 2 a 4 z 8 + 3 a 2 z 8 + z 8 + 2 a 5 z 7 − 3 a 3 z 7 − 5 a z 7 + a 6 z 6 − 8 a 4 z 6 − 14 a 2 z 6 − 5 z 6 − 8 a 5 z 5 + 2 a 3 z 5 + 11 a z 5 + z 5 a − 1 − 4 a 6 z 4 + 9 a 4 z 4 + 24 a 2 z 4 + 11 z 4 + 7 a 5 z 3 − 2 a 3 z 3 − 9 a z 3 + 3 a 6 z 2 − 6 a 4 z 2 − 17 a 2 z 2 + 2 z 2 a − 2 − 6 z 2 − a 5 z + a 3 z + 2 a z + 2 a 4 + 3 a 2 − a − 2 + 1 {\displaystyle a^{3}z^{9}+az^{9}+2a^{4}z^{8}+3a^{2}z^{8}+z^{8}+2a^{5}z^{7}-3a^{3}z^{7}-5az^{7}+a^{6}z^{6}-8a^{4}z^{6}-14a^{2}z^{6}-5z^{6}-8a^{5}z^{5}+2a^{3}z^{5}+11az^{5}+z^{5}a^{-1}-4a^{6}z^{4}+9a^{4}z^{4}+24a^{2}z^{4}+11z^{4}+7a^{5}z^{3}-2a^{3}z^{3}-9az^{3}+3a^{6}z^{2}-6a^{4}z^{2}-17a^{2}z^{2}+2z^{2}a^{-2}-6z^{2}-a^{5}z+a^{3}z+2az+2a^{4}+3a^{2}-a^{-2}+1}
