2 a 6 z 10 + 2 a 4 z 10 + 3 a 7 z 9 + 9 a 5 z 9 + 6 a 3 z 9 + a 8 z 8 − 2 a 6 z 8 + 5 a 4 z 8 + 8 a 2 z 8 − 9 a 7 z 7 − 26 a 5 z 7 − 10 a 3 z 7 + 7 a z 7 + 2 a 8 z 6 + a 6 z 6 − 19 a 4 z 6 − 14 a 2 z 6 + 4 z 6 + 3 a 9 z 5 + 18 a 7 z 5 + 35 a 5 z 5 + 8 a 3 z 5 − 11 a z 5 + z 5 a − 1 − 9 a 8 z 4 + 22 a 4 z 4 + 7 a 2 z 4 − 6 z 4 − 8 a 9 z 3 − 20 a 7 z 3 − 18 a 5 z 3 − 3 a 3 z 3 + 2 a z 3 − z 3 a − 1 + 5 a 8 z 2 + a 6 z 2 − 6 a 4 z 2 − a 2 z 2 + z 2 + 4 a 9 z + 6 a 7 z + 3 a 5 z + a 3 z − a 8 − a 6 − a 2 {\displaystyle 2a^{6}z^{10}+2a^{4}z^{10}+3a^{7}z^{9}+9a^{5}z^{9}+6a^{3}z^{9}+a^{8}z^{8}-2a^{6}z^{8}+5a^{4}z^{8}+8a^{2}z^{8}-9a^{7}z^{7}-26a^{5}z^{7}-10a^{3}z^{7}+7az^{7}+2a^{8}z^{6}+a^{6}z^{6}-19a^{4}z^{6}-14a^{2}z^{6}+4z^{6}+3a^{9}z^{5}+18a^{7}z^{5}+35a^{5}z^{5}+8a^{3}z^{5}-11az^{5}+z^{5}a^{-1}-9a^{8}z^{4}+22a^{4}z^{4}+7a^{2}z^{4}-6z^{4}-8a^{9}z^{3}-20a^{7}z^{3}-18a^{5}z^{3}-3a^{3}z^{3}+2az^{3}-z^{3}a^{-1}+5a^{8}z^{2}+a^{6}z^{2}-6a^{4}z^{2}-a^{2}z^{2}+z^{2}+4a^{9}z+6a^{7}z+3a^{5}z+a^{3}z-a^{8}-a^{6}-a^{2}}
