2 a 6 z 12 + 2 a 4 z 12 + 8 a 7 z 11 + 12 a 5 z 11 + 4 a 3 z 11 + 13 a 8 z 10 + 17 a 6 z 10 + 8 a 4 z 10 + 4 a 2 z 10 + 11 a 9 z 9 − 8 a 7 z 9 − 19 a 5 z 9 + 3 a 3 z 9 + 3 a z 9 + 5 a 10 z 8 − 37 a 8 z 8 − 60 a 6 z 8 − 14 a 4 z 8 + 5 a 2 z 8 + z 8 + a 11 z 7 − 33 a 9 z 7 − 27 a 7 z 7 − 7 a 5 z 7 − 10 a 3 z 7 + 4 a z 7 − 13 a 10 z 6 + 29 a 8 z 6 + 60 a 6 z 6 − 4 a 4 z 6 − 16 a 2 z 6 + 6 z 6 − 2 a 11 z 5 + 26 a 9 z 5 + 45 a 7 z 5 + 39 a 5 z 5 + 9 a 3 z 5 − 10 a z 5 + 3 z 5 a − 1 + 6 a 10 z 4 − 7 a 8 z 4 − 13 a 6 z 4 + 23 a 4 z 4 + 11 a 2 z 4 − 12 z 4 − 6 a 9 z 3 − 24 a 7 z 3 − 33 a 5 z 3 − 7 a 3 z 3 + 4 a z 3 − 4 z 3 a − 1 − 10 a 6 z 2 − 15 a 4 z 2 + 5 z 2 + a 9 z + 5 a 7 z + 8 a 5 z + 4 a 3 z + a 8 + 3 a 6 + 2 a 4 − a 2 {\displaystyle 2a^{6}z^{12}+2a^{4}z^{12}+8a^{7}z^{11}+12a^{5}z^{11}+4a^{3}z^{11}+13a^{8}z^{10}+17a^{6}z^{10}+8a^{4}z^{10}+4a^{2}z^{10}+11a^{9}z^{9}-8a^{7}z^{9}-19a^{5}z^{9}+3a^{3}z^{9}+3az^{9}+5a^{10}z^{8}-37a^{8}z^{8}-60a^{6}z^{8}-14a^{4}z^{8}+5a^{2}z^{8}+z^{8}+a^{11}z^{7}-33a^{9}z^{7}-27a^{7}z^{7}-7a^{5}z^{7}-10a^{3}z^{7}+4az^{7}-13a^{10}z^{6}+29a^{8}z^{6}+60a^{6}z^{6}-4a^{4}z^{6}-16a^{2}z^{6}+6z^{6}-2a^{11}z^{5}+26a^{9}z^{5}+45a^{7}z^{5}+39a^{5}z^{5}+9a^{3}z^{5}-10az^{5}+3z^{5}a^{-1}+6a^{10}z^{4}-7a^{8}z^{4}-13a^{6}z^{4}+23a^{4}z^{4}+11a^{2}z^{4}-12z^{4}-6a^{9}z^{3}-24a^{7}z^{3}-33a^{5}z^{3}-7a^{3}z^{3}+4az^{3}-4z^{3}a^{-1}-10a^{6}z^{2}-15a^{4}z^{2}+5z^{2}+a^{9}z+5a^{7}z+8a^{5}z+4a^{3}z+a^{8}+3a^{6}+2a^{4}-a^{2}}