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 − 8 z 5 a 11 + 4 z 3 a 11 − z a 11 + 9 z 8 a 10 − 16 z 6 a 10 + 18 z 4 a 10 − 12 z 2 a 10 + 2 a 10 + 9 z 9 a 9 − 14 z 7 a 9 + 11 z 5 a 9 − 4 z 3 a 9 + z a 9 + 5 z 10 a 8 + 6 z 8 a 8 − 39 z 6 a 8 + 56 z 4 a 8 − 31 z 2 a 8 + 5 a 8 + z 11 a 7 + 19 z 9 a 7 − 59 z 7 a 7 + 66 z 5 a 7 − 33 z 3 a 7 + 7 z a 7 + 9 z 10 a 6 − 6 z 8 a 6 − 42 z 6 a 6 + 70 z 4 a 6 − 38 z 2 a 6 + 6 a 6 + z 11 a 5 + 16 z 9 a 5 − 58 z 7 a 5 + 64 z 5 a 5 − 31 z 3 a 5 + 6 z a 5 + 4 z 10 a 4 + z 8 a 4 − 36 z 6 a 4 + 51 z 4 a 4 − 26 z 2 a 4 + 4 a 4 + 6 z 9 a 3 − 18 z 7 a 3 + 15 z 5 a 3 − 6 z 3 a 3 + 2 z a 3 + 4 z 8 a 2 − 14 z 6 a 2 + 15 z 4 a 2 − 6 z 2 a 2 + z 7 a − 3 z 5 a + 2 z 3 a {\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}-8z^{5}a^{11}+4z^{3}a^{11}-za^{11}+9z^{8}a^{10}-16z^{6}a^{10}+18z^{4}a^{10}-12z^{2}a^{10}+2a^{10}+9z^{9}a^{9}-14z^{7}a^{9}+11z^{5}a^{9}-4z^{3}a^{9}+za^{9}+5z^{10}a^{8}+6z^{8}a^{8}-39z^{6}a^{8}+56z^{4}a^{8}-31z^{2}a^{8}+5a^{8}+z^{11}a^{7}+19z^{9}a^{7}-59z^{7}a^{7}+66z^{5}a^{7}-33z^{3}a^{7}+7za^{7}+9z^{10}a^{6}-6z^{8}a^{6}-42z^{6}a^{6}+70z^{4}a^{6}-38z^{2}a^{6}+6a^{6}+z^{11}a^{5}+16z^{9}a^{5}-58z^{7}a^{5}+64z^{5}a^{5}-31z^{3}a^{5}+6za^{5}+4z^{10}a^{4}+z^{8}a^{4}-36z^{6}a^{4}+51z^{4}a^{4}-26z^{2}a^{4}+4a^{4}+6z^{9}a^{3}-18z^{7}a^{3}+15z^{5}a^{3}-6z^{3}a^{3}+2za^{3}+4z^{8}a^{2}-14z^{6}a^{2}+15z^{4}a^{2}-6z^{2}a^{2}+z^{7}a-3z^{5}a+2z^{3}a}
