2 a 6 z 10 + 2 a 4 z 10 + 5 a 7 z 9 + 12 a 5 z 9 + 7 a 3 z 9 + 3 a 8 z 8 + 9 a 6 z 8 + 16 a 4 z 8 + 10 a 2 z 8 − 11 a 7 z 7 − 21 a 5 z 7 − 2 a 3 z 7 + 8 a z 7 − 3 a 8 z 6 − 31 a 6 z 6 − 48 a 4 z 6 − 16 a 2 z 6 + 4 z 6 + 6 a 9 z 5 + 19 a 7 z 5 + 10 a 5 z 5 − 16 a 3 z 5 − 12 a z 5 + z 5 a − 1 − a 8 z 4 + 36 a 6 z 4 + 53 a 4 z 4 + 11 a 2 z 4 − 5 z 4 − 14 a 9 z 3 − 25 a 7 z 3 + 18 a 3 z 3 + 6 a z 3 − z 3 a − 1 − 20 a 6 z 2 − 27 a 4 z 2 − 6 a 2 z 2 + z 2 + 8 a 9 z + 10 a 7 z − 4 a 3 z − 2 a z − a 8 + 2 a 6 + 6 a 4 + 2 a 2 {\displaystyle 2a^{6}z^{10}+2a^{4}z^{10}+5a^{7}z^{9}+12a^{5}z^{9}+7a^{3}z^{9}+3a^{8}z^{8}+9a^{6}z^{8}+16a^{4}z^{8}+10a^{2}z^{8}-11a^{7}z^{7}-21a^{5}z^{7}-2a^{3}z^{7}+8az^{7}-3a^{8}z^{6}-31a^{6}z^{6}-48a^{4}z^{6}-16a^{2}z^{6}+4z^{6}+6a^{9}z^{5}+19a^{7}z^{5}+10a^{5}z^{5}-16a^{3}z^{5}-12az^{5}+z^{5}a^{-1}-a^{8}z^{4}+36a^{6}z^{4}+53a^{4}z^{4}+11a^{2}z^{4}-5z^{4}-14a^{9}z^{3}-25a^{7}z^{3}+18a^{3}z^{3}+6az^{3}-z^{3}a^{-1}-20a^{6}z^{2}-27a^{4}z^{2}-6a^{2}z^{2}+z^{2}+8a^{9}z+10a^{7}z-4a^{3}z-2az-a^{8}+2a^{6}+6a^{4}+2a^{2}}
