a 4 z 10 + a 2 z 10 + 4 a 5 z 9 + 5 a 3 z 9 + a z 9 + 6 a 6 z 8 + 5 a 4 z 8 − a 2 z 8 + 5 a 7 z 7 − 8 a 5 z 7 − 14 a 3 z 7 − a z 7 + 3 a 8 z 6 − 16 a 6 z 6 − 19 a 4 z 6 + 4 a 2 z 6 + 4 z 6 + a 9 z 5 − 11 a 7 z 5 + 6 a 5 z 5 + 22 a 3 z 5 + 5 a z 5 + z 5 a − 1 − 6 a 8 z 4 + 18 a 6 z 4 + 28 a 4 z 4 − 4 a 2 z 4 − 8 z 4 − 2 a 9 z 3 + 7 a 7 z 3 + 4 a 5 z 3 − 14 a 3 z 3 − 11 a z 3 − 2 z 3 a − 1 + a 8 z 2 − 7 a 6 z 2 − 13 a 4 z 2 − 3 a 2 z 2 + 2 z 2 − 2 a 7 z − 2 a 5 z + 2 a 3 z + 3 a z + z a − 1 + a 6 + 2 a 4 + a 2 + 1 {\displaystyle a^{4}z^{10}+a^{2}z^{10}+4a^{5}z^{9}+5a^{3}z^{9}+az^{9}+6a^{6}z^{8}+5a^{4}z^{8}-a^{2}z^{8}+5a^{7}z^{7}-8a^{5}z^{7}-14a^{3}z^{7}-az^{7}+3a^{8}z^{6}-16a^{6}z^{6}-19a^{4}z^{6}+4a^{2}z^{6}+4z^{6}+a^{9}z^{5}-11a^{7}z^{5}+6a^{5}z^{5}+22a^{3}z^{5}+5az^{5}+z^{5}a^{-1}-6a^{8}z^{4}+18a^{6}z^{4}+28a^{4}z^{4}-4a^{2}z^{4}-8z^{4}-2a^{9}z^{3}+7a^{7}z^{3}+4a^{5}z^{3}-14a^{3}z^{3}-11az^{3}-2z^{3}a^{-1}+a^{8}z^{2}-7a^{6}z^{2}-13a^{4}z^{2}-3a^{2}z^{2}+2z^{2}-2a^{7}z-2a^{5}z+2a^{3}z+3az+za^{-1}+a^{6}+2a^{4}+a^{2}+1}
