a 7 z 11 + a 5 z 11 + a 8 z 10 + 6 a 6 z 10 + 5 a 4 z 10 + 2 a 7 z 9 + 13 a 5 z 9 + 11 a 3 z 9 + 2 a 8 z 8 − 3 a 6 z 8 + 9 a 4 z 8 + 14 a 2 z 8 + 5 a 9 z 7 + 2 a 7 z 7 − 22 a 5 z 7 − 8 a 3 z 7 + 11 a z 7 + a 10 z 6 − 4 a 8 z 6 − 11 a 6 z 6 − 30 a 4 z 6 − 19 a 2 z 6 + 5 z 6 − 11 a 9 z 5 − 14 a 7 z 5 + a 5 z 5 − 11 a 3 z 5 − 14 a z 5 + z 5 a − 1 − 2 a 10 z 4 − 2 a 8 z 4 + 11 a 6 z 4 + 19 a 4 z 4 + 4 a 2 z 4 − 4 z 4 + 4 a 9 z 3 + 8 a 7 z 3 + 11 a 5 z 3 + 10 a 3 z 3 + 3 a z 3 + a 10 z 2 + 2 a 8 z 2 − 3 a 6 z 2 − 2 a 4 z 2 + 2 a 2 z 2 + 2 a 9 z − 3 a 5 z − a 3 z − a 8 − a 6 − a 2 {\displaystyle a^{7}z^{11}+a^{5}z^{11}+a^{8}z^{10}+6a^{6}z^{10}+5a^{4}z^{10}+2a^{7}z^{9}+13a^{5}z^{9}+11a^{3}z^{9}+2a^{8}z^{8}-3a^{6}z^{8}+9a^{4}z^{8}+14a^{2}z^{8}+5a^{9}z^{7}+2a^{7}z^{7}-22a^{5}z^{7}-8a^{3}z^{7}+11az^{7}+a^{10}z^{6}-4a^{8}z^{6}-11a^{6}z^{6}-30a^{4}z^{6}-19a^{2}z^{6}+5z^{6}-11a^{9}z^{5}-14a^{7}z^{5}+a^{5}z^{5}-11a^{3}z^{5}-14az^{5}+z^{5}a^{-1}-2a^{10}z^{4}-2a^{8}z^{4}+11a^{6}z^{4}+19a^{4}z^{4}+4a^{2}z^{4}-4z^{4}+4a^{9}z^{3}+8a^{7}z^{3}+11a^{5}z^{3}+10a^{3}z^{3}+3az^{3}+a^{10}z^{2}+2a^{8}z^{2}-3a^{6}z^{2}-2a^{4}z^{2}+2a^{2}z^{2}+2a^{9}z-3a^{5}z-a^{3}z-a^{8}-a^{6}-a^{2}}
