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 + 7 a 4 z 8 + 8 a 2 z 8 − 5 a 7 z 7 − 17 a 5 z 7 − 5 a 3 z 7 + 7 a z 7 + 4 a 8 z 6 + 4 a 6 z 6 − 14 a 4 z 6 − 10 a 2 z 6 + 4 z 6 + 3 a 9 z 5 + 10 a 7 z 5 + 17 a 5 z 5 − a 3 z 5 − 10 a z 5 + z 5 a − 1 − 11 a 8 z 4 − 14 a 6 z 4 + 3 a 4 z 4 − 6 z 4 − 6 a 9 z 3 − 15 a 7 z 3 − 12 a 5 z 3 + a 3 z 3 + 3 a z 3 − z 3 a − 1 + 6 a 8 z 2 + 9 a 6 z 2 + 6 a 4 z 2 + 5 a 2 z 2 + 2 z 2 + 3 a 9 z + 5 a 7 z + 3 a 5 z + a 3 z − a 8 − 2 a 6 − 2 a 4 − 2 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}+7a^{4}z^{8}+8a^{2}z^{8}-5a^{7}z^{7}-17a^{5}z^{7}-5a^{3}z^{7}+7az^{7}+4a^{8}z^{6}+4a^{6}z^{6}-14a^{4}z^{6}-10a^{2}z^{6}+4z^{6}+3a^{9}z^{5}+10a^{7}z^{5}+17a^{5}z^{5}-a^{3}z^{5}-10az^{5}+z^{5}a^{-1}-11a^{8}z^{4}-14a^{6}z^{4}+3a^{4}z^{4}-6z^{4}-6a^{9}z^{3}-15a^{7}z^{3}-12a^{5}z^{3}+a^{3}z^{3}+3az^{3}-z^{3}a^{-1}+6a^{8}z^{2}+9a^{6}z^{2}+6a^{4}z^{2}+5a^{2}z^{2}+2z^{2}+3a^{9}z+5a^{7}z+3a^{5}z+a^{3}z-a^{8}-2a^{6}-2a^{4}-2a^{2}}
