a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 6 a 5 z 9 + 4 a 3 z 9 + a 8 z 8 + 3 a 6 z 8 + 9 a 4 z 8 + 7 a 2 z 8 − 5 a 7 z 7 − 12 a 5 z 7 + 7 a z 7 − 12 a 6 z 6 − 27 a 4 z 6 − 11 a 2 z 6 + 4 z 6 + 3 a 9 z 5 + 12 a 7 z 5 + 11 a 5 z 5 − 11 a 3 z 5 − 12 a z 5 + z 5 a − 1 − 3 a 8 z 4 + 20 a 6 z 4 + 34 a 4 z 4 + 5 a 2 z 4 − 6 z 4 − 9 a 9 z 3 − 17 a 7 z 3 − 2 a 5 z 3 + 11 a 3 z 3 + 4 a z 3 − z 3 a − 1 + a 8 z 2 − 13 a 6 z 2 − 18 a 4 z 2 − 3 a 2 z 2 + z 2 + 6 a 9 z + 7 a 7 z − 2 a 3 z − a z − a 8 + a 6 + 4 a 4 + a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+6a^{5}z^{9}+4a^{3}z^{9}+a^{8}z^{8}+3a^{6}z^{8}+9a^{4}z^{8}+7a^{2}z^{8}-5a^{7}z^{7}-12a^{5}z^{7}+7az^{7}-12a^{6}z^{6}-27a^{4}z^{6}-11a^{2}z^{6}+4z^{6}+3a^{9}z^{5}+12a^{7}z^{5}+11a^{5}z^{5}-11a^{3}z^{5}-12az^{5}+z^{5}a^{-1}-3a^{8}z^{4}+20a^{6}z^{4}+34a^{4}z^{4}+5a^{2}z^{4}-6z^{4}-9a^{9}z^{3}-17a^{7}z^{3}-2a^{5}z^{3}+11a^{3}z^{3}+4az^{3}-z^{3}a^{-1}+a^{8}z^{2}-13a^{6}z^{2}-18a^{4}z^{2}-3a^{2}z^{2}+z^{2}+6a^{9}z+7a^{7}z-2a^{3}z-az-a^{8}+a^{6}+4a^{4}+a^{2}}
