z 4 a 16 + 4 z 5 a 15 − z 3 a 15 + 9 z 6 a 14 − 6 z 4 a 14 + z 2 a 14 + 15 z 7 a 13 − 19 z 5 a 13 + 7 z 3 a 13 + 19 z 8 a 12 − 34 z 6 a 12 + 17 z 4 a 12 − 2 z 2 a 12 + 18 z 9 a 11 − 37 z 7 a 11 + 20 z 5 a 11 − 9 z 3 a 11 + 3 z a 11 + 12 z 10 a 10 − 18 z 8 a 10 − 15 z 6 a 10 + 18 z 4 a 10 − z 2 a 10 − 2 a 10 + 5 z 11 a 9 + 8 z 9 a 9 − 70 z 7 a 9 + 91 z 5 a 9 − 48 z 3 a 9 + 9 z a 9 + z 12 a 8 + 16 z 10 a 8 − 71 z 8 a 8 + 91 z 6 a 8 − 57 z 4 a 8 + 28 z 2 a 8 − 7 a 8 + 8 z 11 a 7 − 23 z 9 a 7 − 3 z 7 a 7 + 47 z 5 a 7 − 33 z 3 a 7 + 5 z a 7 + z 12 a 6 + 7 z 10 a 6 − 52 z 8 a 6 + 102 z 6 a 6 − 88 z 4 a 6 + 40 z 2 a 6 − 6 a 6 + 3 z 11 a 5 − 12 z 9 a 5 + 9 z 7 a 5 + 11 z 5 a 5 − 10 z 3 a 5 − z a 5 + 3 z 10 a 4 − 18 z 8 a 4 + 39 z 6 a 4 − 37 z 4 a 4 + 14 z 2 a 4 + z 9 a 3 − 6 z 7 a 3 + 12 z 5 a 3 − 8 z 3 a 3 {\displaystyle z^{4}a^{16}+4z^{5}a^{15}-z^{3}a^{15}+9z^{6}a^{14}-6z^{4}a^{14}+z^{2}a^{14}+15z^{7}a^{13}-19z^{5}a^{13}+7z^{3}a^{13}+19z^{8}a^{12}-34z^{6}a^{12}+17z^{4}a^{12}-2z^{2}a^{12}+18z^{9}a^{11}-37z^{7}a^{11}+20z^{5}a^{11}-9z^{3}a^{11}+3za^{11}+12z^{10}a^{10}-18z^{8}a^{10}-15z^{6}a^{10}+18z^{4}a^{10}-z^{2}a^{10}-2a^{10}+5z^{11}a^{9}+8z^{9}a^{9}-70z^{7}a^{9}+91z^{5}a^{9}-48z^{3}a^{9}+9za^{9}+z^{12}a^{8}+16z^{10}a^{8}-71z^{8}a^{8}+91z^{6}a^{8}-57z^{4}a^{8}+28z^{2}a^{8}-7a^{8}+8z^{11}a^{7}-23z^{9}a^{7}-3z^{7}a^{7}+47z^{5}a^{7}-33z^{3}a^{7}+5za^{7}+z^{12}a^{6}+7z^{10}a^{6}-52z^{8}a^{6}+102z^{6}a^{6}-88z^{4}a^{6}+40z^{2}a^{6}-6a^{6}+3z^{11}a^{5}-12z^{9}a^{5}+9z^{7}a^{5}+11z^{5}a^{5}-10z^{3}a^{5}-za^{5}+3z^{10}a^{4}-18z^{8}a^{4}+39z^{6}a^{4}-37z^{4}a^{4}+14z^{2}a^{4}+z^{9}a^{3}-6z^{7}a^{3}+12z^{5}a^{3}-8z^{3}a^{3}}
