z 7 a 15 − z 5 a 15 + 6 z 8 a 14 − 10 z 6 a 14 + 5 z 4 a 14 + 16 z 9 a 13 − 34 z 7 a 13 + 24 z 5 a 13 − 5 z 3 a 13 + 22 z 10 a 12 − 41 z 8 a 12 + 15 z 6 a 12 + 2 z 4 a 12 + z 2 a 12 + 15 z 11 a 11 + 5 z 9 a 11 − 77 z 7 a 11 + 70 z 5 a 11 − 19 z 3 a 11 + 4 z 12 a 10 + 45 z 10 a 10 − 119 z 8 a 10 + 82 z 6 a 10 − 27 z 4 a 10 + 7 z 2 a 10 − a 10 + 28 z 11 a 9 − 21 z 9 a 9 − 58 z 7 a 9 + 63 z 5 a 9 − 24 z 3 a 9 + 5 z a 9 + 4 z 12 a 8 + 38 z 10 a 8 − 95 z 8 a 8 + 85 z 6 a 8 − 53 z 4 a 8 + 25 z 2 a 8 − 5 a 8 + 13 z 11 a 7 − 3 z 9 a 7 − 12 z 7 a 7 + 10 z 5 a 7 − 8 z 3 a 7 + 5 z a 7 + 15 z 10 a 6 − 22 z 8 a 6 + 40 z 6 a 6 − 43 z 4 a 6 + 23 z 2 a 6 − 5 a 6 + 7 z 9 a 5 + 4 z 7 a 5 − 5 z 5 a 5 + z 8 a 4 + 12 z 6 a 4 − 14 z 4 a 4 + 4 z 2 a 4 + 3 z 5 a 3 − 2 z 3 a 3 {\displaystyle z^{7}a^{15}-z^{5}a^{15}+6z^{8}a^{14}-10z^{6}a^{14}+5z^{4}a^{14}+16z^{9}a^{13}-34z^{7}a^{13}+24z^{5}a^{13}-5z^{3}a^{13}+22z^{10}a^{12}-41z^{8}a^{12}+15z^{6}a^{12}+2z^{4}a^{12}+z^{2}a^{12}+15z^{11}a^{11}+5z^{9}a^{11}-77z^{7}a^{11}+70z^{5}a^{11}-19z^{3}a^{11}+4z^{12}a^{10}+45z^{10}a^{10}-119z^{8}a^{10}+82z^{6}a^{10}-27z^{4}a^{10}+7z^{2}a^{10}-a^{10}+28z^{11}a^{9}-21z^{9}a^{9}-58z^{7}a^{9}+63z^{5}a^{9}-24z^{3}a^{9}+5za^{9}+4z^{12}a^{8}+38z^{10}a^{8}-95z^{8}a^{8}+85z^{6}a^{8}-53z^{4}a^{8}+25z^{2}a^{8}-5a^{8}+13z^{11}a^{7}-3z^{9}a^{7}-12z^{7}a^{7}+10z^{5}a^{7}-8z^{3}a^{7}+5za^{7}+15z^{10}a^{6}-22z^{8}a^{6}+40z^{6}a^{6}-43z^{4}a^{6}+23z^{2}a^{6}-5a^{6}+7z^{9}a^{5}+4z^{7}a^{5}-5z^{5}a^{5}+z^{8}a^{4}+12z^{6}a^{4}-14z^{4}a^{4}+4z^{2}a^{4}+3z^{5}a^{3}-2z^{3}a^{3}}
