2 a 6 z 12 + 2 a 4 z 12 + 9 a 7 z 11 + 13 a 5 z 11 + 4 a 3 z 11 + 15 a 8 z 10 + 23 a 6 z 10 + 11 a 4 z 10 + 3 a 2 z 10 + 12 a 9 z 9 − 2 a 7 z 9 − 12 a 5 z 9 + 3 a 3 z 9 + a z 9 + 5 a 10 z 8 − 36 a 8 z 8 − 63 a 6 z 8 − 17 a 4 z 8 + 5 a 2 z 8 + a 11 z 7 − 31 a 9 z 7 − 37 a 7 z 7 − 17 a 5 z 7 − 5 a 3 z 7 + 7 a z 7 − 11 a 10 z 6 + 26 a 8 z 6 + 44 a 6 z 6 − 5 a 4 z 6 − 7 a 2 z 6 + 5 z 6 − 2 a 11 z 5 + 25 a 9 z 5 + 36 a 7 z 5 + 16 a 5 z 5 − 6 a z 5 + z 5 a − 1 + 6 a 10 z 4 − 13 a 8 z 4 − 10 a 6 z 4 + 22 a 4 z 4 + 8 a 2 z 4 − 5 z 4 + a 11 z 3 − 10 a 9 z 3 − 16 a 7 z 3 + 2 a 5 z 3 + 9 a 3 z 3 + a z 3 − z 3 a − 1 + 4 a 8 z 2 − 3 a 6 z 2 − 10 a 4 z 2 − 3 a 2 z 2 + 4 a 9 z + 3 a 7 z − 3 a 5 z − 3 a 3 z − a z − a 8 + 2 a 4 {\displaystyle 2a^{6}z^{12}+2a^{4}z^{12}+9a^{7}z^{11}+13a^{5}z^{11}+4a^{3}z^{11}+15a^{8}z^{10}+23a^{6}z^{10}+11a^{4}z^{10}+3a^{2}z^{10}+12a^{9}z^{9}-2a^{7}z^{9}-12a^{5}z^{9}+3a^{3}z^{9}+az^{9}+5a^{10}z^{8}-36a^{8}z^{8}-63a^{6}z^{8}-17a^{4}z^{8}+5a^{2}z^{8}+a^{11}z^{7}-31a^{9}z^{7}-37a^{7}z^{7}-17a^{5}z^{7}-5a^{3}z^{7}+7az^{7}-11a^{10}z^{6}+26a^{8}z^{6}+44a^{6}z^{6}-5a^{4}z^{6}-7a^{2}z^{6}+5z^{6}-2a^{11}z^{5}+25a^{9}z^{5}+36a^{7}z^{5}+16a^{5}z^{5}-6az^{5}+z^{5}a^{-1}+6a^{10}z^{4}-13a^{8}z^{4}-10a^{6}z^{4}+22a^{4}z^{4}+8a^{2}z^{4}-5z^{4}+a^{11}z^{3}-10a^{9}z^{3}-16a^{7}z^{3}+2a^{5}z^{3}+9a^{3}z^{3}+az^{3}-z^{3}a^{-1}+4a^{8}z^{2}-3a^{6}z^{2}-10a^{4}z^{2}-3a^{2}z^{2}+4a^{9}z+3a^{7}z-3a^{5}z-3a^{3}z-az-a^{8}+2a^{4}}
