a 6 z 10 + a 4 z 10 + 2 a 7 z 9 + 6 a 5 z 9 + 4 a 3 z 9 + a 8 z 8 + 3 a 6 z 8 + 8 a 4 z 8 + 6 a 2 z 8 − 3 a 7 z 7 − 13 a 5 z 7 − 5 a 3 z 7 + 5 a z 7 + 2 a 8 z 6 − 8 a 6 z 6 − 27 a 4 z 6 − 14 a 2 z 6 + 3 z 6 + 3 a 9 z 5 + 7 a 7 z 5 + 16 a 5 z 5 + a 3 z 5 − 10 a z 5 + z 5 a − 1 − 8 a 8 z 4 + 9 a 6 z 4 + 39 a 4 z 4 + 16 a 2 z 4 − 6 z 4 − 7 a 9 z 3 − 14 a 7 z 3 − 10 a 5 z 3 + 5 a 3 z 3 + 6 a z 3 − 2 z 3 a − 1 + 4 a 8 z 2 − 10 a 6 z 2 − 23 a 4 z 2 − 7 a 2 z 2 + 2 z 2 + 4 a 9 z + 5 a 7 z + a 5 z − a 3 z − a z + 3 a 6 + 5 a 4 + a 2 {\displaystyle a^{6}z^{10}+a^{4}z^{10}+2a^{7}z^{9}+6a^{5}z^{9}+4a^{3}z^{9}+a^{8}z^{8}+3a^{6}z^{8}+8a^{4}z^{8}+6a^{2}z^{8}-3a^{7}z^{7}-13a^{5}z^{7}-5a^{3}z^{7}+5az^{7}+2a^{8}z^{6}-8a^{6}z^{6}-27a^{4}z^{6}-14a^{2}z^{6}+3z^{6}+3a^{9}z^{5}+7a^{7}z^{5}+16a^{5}z^{5}+a^{3}z^{5}-10az^{5}+z^{5}a^{-1}-8a^{8}z^{4}+9a^{6}z^{4}+39a^{4}z^{4}+16a^{2}z^{4}-6z^{4}-7a^{9}z^{3}-14a^{7}z^{3}-10a^{5}z^{3}+5a^{3}z^{3}+6az^{3}-2z^{3}a^{-1}+4a^{8}z^{2}-10a^{6}z^{2}-23a^{4}z^{2}-7a^{2}z^{2}+2z^{2}+4a^{9}z+5a^{7}z+a^{5}z-a^{3}z-az+3a^{6}+5a^{4}+a^{2}}
