a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 7 a 5 z 9 + 5 a 3 z 9 + a 8 z 8 + 6 a 6 z 8 + 15 a 4 z 8 + 10 a 2 z 8 − a 7 z 7 − 3 a 5 z 7 + 8 a 3 z 7 + 10 a z 7 + 2 a 8 z 6 − 10 a 6 z 6 − 28 a 4 z 6 − 11 a 2 z 6 + 5 z 6 + 3 a 9 z 5 + 4 a 7 z 5 − 12 a 5 z 5 − 29 a 3 z 5 − 15 a z 5 + z 5 a − 1 − 6 a 8 z 4 + 2 a 6 z 4 + 9 a 4 z 4 − 4 a 2 z 4 − 5 z 4 − 7 a 9 z 3 − 9 a 7 z 3 + 11 a 5 z 3 + 17 a 3 z 3 + 4 a z 3 + 4 a 8 z 2 + 6 a 6 z 2 + 7 a 4 z 2 + 5 a 2 z 2 + 4 a 9 z + 4 a 7 z − a 5 z − a 3 z − 2 a 8 − 4 a 6 − 3 a 4 − 2 a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+7a^{5}z^{9}+5a^{3}z^{9}+a^{8}z^{8}+6a^{6}z^{8}+15a^{4}z^{8}+10a^{2}z^{8}-a^{7}z^{7}-3a^{5}z^{7}+8a^{3}z^{7}+10az^{7}+2a^{8}z^{6}-10a^{6}z^{6}-28a^{4}z^{6}-11a^{2}z^{6}+5z^{6}+3a^{9}z^{5}+4a^{7}z^{5}-12a^{5}z^{5}-29a^{3}z^{5}-15az^{5}+z^{5}a^{-1}-6a^{8}z^{4}+2a^{6}z^{4}+9a^{4}z^{4}-4a^{2}z^{4}-5z^{4}-7a^{9}z^{3}-9a^{7}z^{3}+11a^{5}z^{3}+17a^{3}z^{3}+4az^{3}+4a^{8}z^{2}+6a^{6}z^{2}+7a^{4}z^{2}+5a^{2}z^{2}+4a^{9}z+4a^{7}z-a^{5}z-a^{3}z-2a^{8}-4a^{6}-3a^{4}-2a^{2}}
