2 a 6 z 12 + 2 a 4 z 12 + 8 a 7 z 11 + 18 a 5 z 11 + 10 a 3 z 11 + 12 a 8 z 10 + 36 a 6 z 10 + 45 a 4 z 10 + 21 a 2 z 10 + 9 a 9 z 9 + 14 a 7 z 9 + 20 a 5 z 9 + 39 a 3 z 9 + 24 a z 9 + 4 a 10 z 8 − 20 a 8 z 8 − 83 a 6 z 8 − 83 a 4 z 8 − 8 a 2 z 8 + 16 z 8 + a 11 z 7 − 21 a 9 z 7 − 75 a 7 z 7 − 136 a 5 z 7 − 125 a 3 z 7 − 36 a z 7 + 6 z 7 a − 1 − 10 a 10 z 6 + 6 a 8 z 6 + 48 a 6 z 6 + 13 a 4 z 6 − 43 a 2 z 6 + z 6 a − 2 − 23 z 6 − 3 a 11 z 5 + 20 a 9 z 5 + 94 a 7 z 5 + 152 a 5 z 5 + 103 a 3 z 5 + 17 a z 5 − 5 z 5 a − 1 + 9 a 10 z 4 + 7 a 8 z 4 + 4 a 6 z 4 + 30 a 4 z 4 + 34 a 2 z 4 + 10 z 4 + 3 a 11 z 3 − 11 a 9 z 3 − 51 a 7 z 3 − 63 a 5 z 3 − 31 a 3 z 3 − 5 a z 3 − 4 a 10 z 2 − 7 a 8 z 2 − 8 a 6 z 2 − 6 a 4 z 2 − a 2 z 2 − a 11 z + 3 a 9 z + 9 a 7 z + 7 a 5 z + 2 a 3 z + a 10 + 2 a 8 + a 6 − a 4 − 2 a 2 {\displaystyle 2a^{6}z^{12}+2a^{4}z^{12}+8a^{7}z^{11}+18a^{5}z^{11}+10a^{3}z^{11}+12a^{8}z^{10}+36a^{6}z^{10}+45a^{4}z^{10}+21a^{2}z^{10}+9a^{9}z^{9}+14a^{7}z^{9}+20a^{5}z^{9}+39a^{3}z^{9}+24az^{9}+4a^{10}z^{8}-20a^{8}z^{8}-83a^{6}z^{8}-83a^{4}z^{8}-8a^{2}z^{8}+16z^{8}+a^{11}z^{7}-21a^{9}z^{7}-75a^{7}z^{7}-136a^{5}z^{7}-125a^{3}z^{7}-36az^{7}+6z^{7}a^{-1}-10a^{10}z^{6}+6a^{8}z^{6}+48a^{6}z^{6}+13a^{4}z^{6}-43a^{2}z^{6}+z^{6}a^{-2}-23z^{6}-3a^{11}z^{5}+20a^{9}z^{5}+94a^{7}z^{5}+152a^{5}z^{5}+103a^{3}z^{5}+17az^{5}-5z^{5}a^{-1}+9a^{10}z^{4}+7a^{8}z^{4}+4a^{6}z^{4}+30a^{4}z^{4}+34a^{2}z^{4}+10z^{4}+3a^{11}z^{3}-11a^{9}z^{3}-51a^{7}z^{3}-63a^{5}z^{3}-31a^{3}z^{3}-5az^{3}-4a^{10}z^{2}-7a^{8}z^{2}-8a^{6}z^{2}-6a^{4}z^{2}-a^{2}z^{2}-a^{11}z+3a^{9}z+9a^{7}z+7a^{5}z+2a^{3}z+a^{10}+2a^{8}+a^{6}-a^{4}-2a^{2}}