a 5 z 11 + a 3 z 11 + 4 a 6 z 10 + 9 a 4 z 10 + 5 a 2 z 10 + 7 a 7 z 9 + 17 a 5 z 9 + 19 a 3 z 9 + 9 a z 9 + 7 a 8 z 8 + 9 a 6 z 8 − a 4 z 8 + 5 a 2 z 8 + 8 z 8 + 4 a 9 z 7 − 7 a 7 z 7 − 40 a 5 z 7 − 52 a 3 z 7 − 19 a z 7 + 4 z 7 a − 1 + a 10 z 6 − 14 a 8 z 6 − 34 a 6 z 6 − 34 a 4 z 6 − 36 a 2 z 6 + z 6 a − 2 − 20 z 6 − 9 a 9 z 5 − 6 a 7 z 5 + 36 a 5 z 5 + 56 a 3 z 5 + 14 a z 5 − 9 z 5 a − 1 − 2 a 10 z 4 + 8 a 8 z 4 + 32 a 6 z 4 + 50 a 4 z 4 + 47 a 2 z 4 − 2 z 4 a − 2 + 17 z 4 + 6 a 9 z 3 + 6 a 7 z 3 − 18 a 5 z 3 − 27 a 3 z 3 − 5 a z 3 + 4 z 3 a − 1 + a 10 z 2 − 2 a 8 z 2 − 16 a 6 z 2 − 28 a 4 z 2 − 22 a 2 z 2 − 7 z 2 − a 9 z − a 7 z + 4 a 5 z + 6 a 3 z + 2 a z + a 8 + 4 a 6 + 5 a 4 + 2 a 2 + 1 {\displaystyle a^{5}z^{11}+a^{3}z^{11}+4a^{6}z^{10}+9a^{4}z^{10}+5a^{2}z^{10}+7a^{7}z^{9}+17a^{5}z^{9}+19a^{3}z^{9}+9az^{9}+7a^{8}z^{8}+9a^{6}z^{8}-a^{4}z^{8}+5a^{2}z^{8}+8z^{8}+4a^{9}z^{7}-7a^{7}z^{7}-40a^{5}z^{7}-52a^{3}z^{7}-19az^{7}+4z^{7}a^{-1}+a^{10}z^{6}-14a^{8}z^{6}-34a^{6}z^{6}-34a^{4}z^{6}-36a^{2}z^{6}+z^{6}a^{-2}-20z^{6}-9a^{9}z^{5}-6a^{7}z^{5}+36a^{5}z^{5}+56a^{3}z^{5}+14az^{5}-9z^{5}a^{-1}-2a^{10}z^{4}+8a^{8}z^{4}+32a^{6}z^{4}+50a^{4}z^{4}+47a^{2}z^{4}-2z^{4}a^{-2}+17z^{4}+6a^{9}z^{3}+6a^{7}z^{3}-18a^{5}z^{3}-27a^{3}z^{3}-5az^{3}+4z^{3}a^{-1}+a^{10}z^{2}-2a^{8}z^{2}-16a^{6}z^{2}-28a^{4}z^{2}-22a^{2}z^{2}-7z^{2}-a^{9}z-a^{7}z+4a^{5}z+6a^{3}z+2az+a^{8}+4a^{6}+5a^{4}+2a^{2}+1}