a 6 z 10 + a 4 z 10 + a 7 z 9 + 6 a 5 z 9 + 5 a 3 z 9 + 2 a 6 z 8 + 12 a 4 z 8 + 10 a 2 z 8 + a 7 z 7 − 4 a 5 z 7 + 5 a 3 z 7 + 10 a z 7 + 4 a 8 z 6 + 2 a 6 z 6 − 19 a 4 z 6 − 12 a 2 z 6 + 5 z 6 + a 9 z 5 + 2 a 7 z 5 − 4 a 5 z 5 − 21 a 3 z 5 − 15 a z 5 + z 5 a − 1 − 6 a 8 z 4 − 9 a 6 z 4 − 2 a 4 z 4 − 4 a 2 z 4 − 5 z 4 − 2 a 9 z 3 − 5 a 7 z 3 + 4 a 5 z 3 + 10 a 3 z 3 + 3 a z 3 + 2 a 8 z 2 + 9 a 6 z 2 + 14 a 4 z 2 + 7 a 2 z 2 + a 9 z + a 7 z − a 8 − 3 a 6 − 4 a 4 − 3 a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+a^{7}z^{9}+6a^{5}z^{9}+5a^{3}z^{9}+2a^{6}z^{8}+12a^{4}z^{8}+10a^{2}z^{8}+a^{7}z^{7}-4a^{5}z^{7}+5a^{3}z^{7}+10az^{7}+4a^{8}z^{6}+2a^{6}z^{6}-19a^{4}z^{6}-12a^{2}z^{6}+5z^{6}+a^{9}z^{5}+2a^{7}z^{5}-4a^{5}z^{5}-21a^{3}z^{5}-15az^{5}+z^{5}a^{-1}-6a^{8}z^{4}-9a^{6}z^{4}-2a^{4}z^{4}-4a^{2}z^{4}-5z^{4}-2a^{9}z^{3}-5a^{7}z^{3}+4a^{5}z^{3}+10a^{3}z^{3}+3az^{3}+2a^{8}z^{2}+9a^{6}z^{2}+14a^{4}z^{2}+7a^{2}z^{2}+a^{9}z+a^{7}z-a^{8}-3a^{6}-4a^{4}-3a^{2}}
