z 5 a 13 − 2 z 3 a 13 + z a 13 + 3 z 6 a 12 − 4 z 4 a 12 + z 2 a 12 + 6 z 7 a 11 − 10 z 5 a 11 + 8 z 3 a 11 − 4 z a 11 + 7 z 8 a 10 − 10 z 6 a 10 + 7 z 4 a 10 − 5 z 2 a 10 + 2 a 10 + 5 z 9 a 9 − z 7 a 9 − 10 z 5 a 9 + 12 z 3 a 9 − 4 z a 9 + 2 z 10 a 8 + 7 z 8 a 8 − 18 z 6 a 8 + 16 z 4 a 8 − 8 z 2 a 8 + 3 a 8 + 10 z 9 a 7 − 21 z 7 a 7 + 20 z 5 a 7 − 11 z 3 a 7 + 2 z a 7 + 2 z 10 a 6 + 5 z 8 a 6 − 19 z 6 a 6 + 20 z 4 a 6 − 11 z 2 a 6 + 2 a 6 + 5 z 9 a 5 − 11 z 7 a 5 + 11 z 5 a 5 − 8 z 3 a 5 + z a 5 + 5 z 8 a 4 − 13 z 6 a 4 + 12 z 4 a 4 − 7 z 2 a 4 + 2 a 4 + 3 z 7 a 3 − 8 z 5 a 3 + 5 z 3 a 3 + z 6 a 2 − 3 z 4 a 2 + 2 z 2 a 2 {\displaystyle z^{5}a^{13}-2z^{3}a^{13}+za^{13}+3z^{6}a^{12}-4z^{4}a^{12}+z^{2}a^{12}+6z^{7}a^{11}-10z^{5}a^{11}+8z^{3}a^{11}-4za^{11}+7z^{8}a^{10}-10z^{6}a^{10}+7z^{4}a^{10}-5z^{2}a^{10}+2a^{10}+5z^{9}a^{9}-z^{7}a^{9}-10z^{5}a^{9}+12z^{3}a^{9}-4za^{9}+2z^{10}a^{8}+7z^{8}a^{8}-18z^{6}a^{8}+16z^{4}a^{8}-8z^{2}a^{8}+3a^{8}+10z^{9}a^{7}-21z^{7}a^{7}+20z^{5}a^{7}-11z^{3}a^{7}+2za^{7}+2z^{10}a^{6}+5z^{8}a^{6}-19z^{6}a^{6}+20z^{4}a^{6}-11z^{2}a^{6}+2a^{6}+5z^{9}a^{5}-11z^{7}a^{5}+11z^{5}a^{5}-8z^{3}a^{5}+za^{5}+5z^{8}a^{4}-13z^{6}a^{4}+12z^{4}a^{4}-7z^{2}a^{4}+2a^{4}+3z^{7}a^{3}-8z^{5}a^{3}+5z^{3}a^{3}+z^{6}a^{2}-3z^{4}a^{2}+2z^{2}a^{2}}
