a 5 z 11 + a 3 z 11 + 5 a 6 z 10 + 7 a 4 z 10 + 2 a 2 z 10 + 10 a 7 z 9 + 19 a 5 z 9 + 10 a 3 z 9 + a z 9 + 10 a 8 z 8 + 15 a 6 z 8 + 13 a 4 z 8 + 8 a 2 z 8 + 5 a 9 z 7 − 10 a 7 z 7 − 32 a 5 z 7 − 8 a 3 z 7 + 9 a z 7 + a 10 z 6 − 20 a 8 z 6 − 57 a 6 z 6 − 56 a 4 z 6 − 14 a 2 z 6 + 6 z 6 − 9 a 9 z 5 − 13 a 7 z 5 − 8 a 3 z 5 − 11 a z 5 + z 5 a − 1 − a 10 z 4 + 12 a 8 z 4 + 52 a 6 z 4 + 58 a 4 z 4 + 15 a 2 z 4 − 4 z 4 + 4 a 9 z 3 + 15 a 7 z 3 + 16 a 5 z 3 + 6 a 3 z 3 + a z 3 − 3 a 8 z 2 − 18 a 6 z 2 − 27 a 4 z 2 − 15 a 2 z 2 − 3 z 2 − 3 a 7 z − 4 a 5 z + a z + 2 a 6 + 5 a 4 + 4 a 2 + 2 {\displaystyle a^{5}z^{11}+a^{3}z^{11}+5a^{6}z^{10}+7a^{4}z^{10}+2a^{2}z^{10}+10a^{7}z^{9}+19a^{5}z^{9}+10a^{3}z^{9}+az^{9}+10a^{8}z^{8}+15a^{6}z^{8}+13a^{4}z^{8}+8a^{2}z^{8}+5a^{9}z^{7}-10a^{7}z^{7}-32a^{5}z^{7}-8a^{3}z^{7}+9az^{7}+a^{10}z^{6}-20a^{8}z^{6}-57a^{6}z^{6}-56a^{4}z^{6}-14a^{2}z^{6}+6z^{6}-9a^{9}z^{5}-13a^{7}z^{5}-8a^{3}z^{5}-11az^{5}+z^{5}a^{-1}-a^{10}z^{4}+12a^{8}z^{4}+52a^{6}z^{4}+58a^{4}z^{4}+15a^{2}z^{4}-4z^{4}+4a^{9}z^{3}+15a^{7}z^{3}+16a^{5}z^{3}+6a^{3}z^{3}+az^{3}-3a^{8}z^{2}-18a^{6}z^{2}-27a^{4}z^{2}-15a^{2}z^{2}-3z^{2}-3a^{7}z-4a^{5}z+az+2a^{6}+5a^{4}+4a^{2}+2}