a 12 z 2 + 2 a 11 z 3 + 3 a 10 z 4 − 2 a 10 z 2 + 4 a 9 z 5 − 6 a 9 z 3 + 5 a 8 z 6 − 12 a 8 z 4 + 3 a 8 z 2 + 6 a 7 z 7 − 22 a 7 z 5 + 20 a 7 z 3 − 6 a 7 z + 5 a 6 z 8 − 21 a 6 z 6 + 23 a 6 z 4 − 8 a 6 z 2 + a 6 + 3 a 5 z 9 − 12 a 5 z 7 + 8 a 5 z 5 + 5 a 5 z 3 − a 5 z − 1 + a 4 z 10 − a 4 z 8 − 16 a 4 z 6 + 37 a 4 z 4 − 21 a 4 z 2 + 3 a 4 + 4 a 3 z 9 − 26 a 3 z 7 + 57 a 3 z 5 − 51 a 3 z 3 + 19 a 3 z − 3 a 3 z − 1 + a 2 z 10 − 6 a 2 z 8 + 10 a 2 z 6 − a 2 z 4 − 7 a 2 z 2 + 3 a 2 + a z 9 − 8 a z 7 + 23 a z 5 − 28 a z 3 + 13 a z − 2 a z − 1 {\displaystyle a^{12}z^{2}+2a^{11}z^{3}+3a^{10}z^{4}-2a^{10}z^{2}+4a^{9}z^{5}-6a^{9}z^{3}+5a^{8}z^{6}-12a^{8}z^{4}+3a^{8}z^{2}+6a^{7}z^{7}-22a^{7}z^{5}+20a^{7}z^{3}-6a^{7}z+5a^{6}z^{8}-21a^{6}z^{6}+23a^{6}z^{4}-8a^{6}z^{2}+a^{6}+3a^{5}z^{9}-12a^{5}z^{7}+8a^{5}z^{5}+5a^{5}z^{3}-a^{5}z^{-1}+a^{4}z^{10}-a^{4}z^{8}-16a^{4}z^{6}+37a^{4}z^{4}-21a^{4}z^{2}+3a^{4}+4a^{3}z^{9}-26a^{3}z^{7}+57a^{3}z^{5}-51a^{3}z^{3}+19a^{3}z-3a^{3}z^{-1}+a^{2}z^{10}-6a^{2}z^{8}+10a^{2}z^{6}-a^{2}z^{4}-7a^{2}z^{2}+3a^{2}+az^{9}-8az^{7}+23az^{5}-28az^{3}+13az-2az^{-1}}
