z 5 a 13 − 2 z 3 a 13 + 3 z 6 a 12 − 6 z 4 a 12 + z 2 a 12 + 5 z 7 a 11 − 12 z 5 a 11 + 9 z 3 a 11 − 3 z a 11 + 5 z 8 a 10 − 12 z 6 a 10 + 12 z 4 a 10 − 4 z 2 a 10 + 3 z 9 a 9 − 4 z 7 a 9 + 6 z 3 a 9 − z a 9 + z 10 a 8 + 2 z 8 a 8 − 6 z 6 a 8 + 6 z 4 a 8 + 3 z 2 a 8 − 2 a 8 + 4 z 9 a 7 − 11 z 7 a 7 + 19 z 5 a 7 − 14 z 3 a 7 + 3 z a 7 + z 10 a 6 − 3 z 8 a 6 + 13 z 6 a 6 − 21 z 4 a 6 + 11 z 2 a 6 − 2 a 6 + z 9 a 5 − 2 z 7 a 5 + 7 z 5 a 5 − 11 z 3 a 5 + 2 z a 5 + 4 z 6 a 4 − 9 z 4 a 4 + 3 z 2 a 4 + a 4 + z 5 a 3 − 2 z 3 a 3 + z a 3 {\displaystyle z^{5}a^{13}-2z^{3}a^{13}+3z^{6}a^{12}-6z^{4}a^{12}+z^{2}a^{12}+5z^{7}a^{11}-12z^{5}a^{11}+9z^{3}a^{11}-3za^{11}+5z^{8}a^{10}-12z^{6}a^{10}+12z^{4}a^{10}-4z^{2}a^{10}+3z^{9}a^{9}-4z^{7}a^{9}+6z^{3}a^{9}-za^{9}+z^{10}a^{8}+2z^{8}a^{8}-6z^{6}a^{8}+6z^{4}a^{8}+3z^{2}a^{8}-2a^{8}+4z^{9}a^{7}-11z^{7}a^{7}+19z^{5}a^{7}-14z^{3}a^{7}+3za^{7}+z^{10}a^{6}-3z^{8}a^{6}+13z^{6}a^{6}-21z^{4}a^{6}+11z^{2}a^{6}-2a^{6}+z^{9}a^{5}-2z^{7}a^{5}+7z^{5}a^{5}-11z^{3}a^{5}+2za^{5}+4z^{6}a^{4}-9z^{4}a^{4}+3z^{2}a^{4}+a^{4}+z^{5}a^{3}-2z^{3}a^{3}+za^{3}}
