z 5 a 13 − 2 z 3 a 13 + 3 z 6 a 12 − 5 z 4 a 12 + 6 z 7 a 11 − 13 z 5 a 11 + 10 z 3 a 11 − 3 z a 11 + 8 z 8 a 10 − 19 z 6 a 10 + 20 z 4 a 10 − 6 z 2 a 10 + 8 z 9 a 9 − 19 z 7 a 9 + 21 z 5 a 9 − 6 z 3 a 9 + 2 z a 9 + 6 z 10 a 8 − 13 z 8 a 8 + 15 z 6 a 8 − 9 z 4 a 8 + 9 z 2 a 8 − 3 a 8 + 2 z 11 a 7 + 7 z 9 a 7 − 36 z 7 a 7 + 59 z 5 a 7 − 42 z 3 a 7 + 10 z a 7 + 11 z 10 a 6 − 36 z 8 a 6 + 52 z 6 a 6 − 47 z 4 a 6 + 22 z 2 a 6 − 5 a 6 + 2 z 11 a 5 + 5 z 9 a 5 − 31 z 7 a 5 + 42 z 5 a 5 − 30 z 3 a 5 + 7 z a 5 + 5 z 10 a 4 − 11 z 8 a 4 + z 6 a 4 + 5 z 2 a 4 − 2 a 4 + 6 z 9 a 3 − 19 z 7 a 3 + 15 z 5 a 3 − 4 z 3 a 3 + 2 z a 3 + 4 z 8 a 2 − 14 z 6 a 2 + 13 z 4 a 2 − 2 z 2 a 2 − a 2 + z 7 a − 3 z 5 a + 2 z 3 a {\displaystyle z^{5}a^{13}-2z^{3}a^{13}+3z^{6}a^{12}-5z^{4}a^{12}+6z^{7}a^{11}-13z^{5}a^{11}+10z^{3}a^{11}-3za^{11}+8z^{8}a^{10}-19z^{6}a^{10}+20z^{4}a^{10}-6z^{2}a^{10}+8z^{9}a^{9}-19z^{7}a^{9}+21z^{5}a^{9}-6z^{3}a^{9}+2za^{9}+6z^{10}a^{8}-13z^{8}a^{8}+15z^{6}a^{8}-9z^{4}a^{8}+9z^{2}a^{8}-3a^{8}+2z^{11}a^{7}+7z^{9}a^{7}-36z^{7}a^{7}+59z^{5}a^{7}-42z^{3}a^{7}+10za^{7}+11z^{10}a^{6}-36z^{8}a^{6}+52z^{6}a^{6}-47z^{4}a^{6}+22z^{2}a^{6}-5a^{6}+2z^{11}a^{5}+5z^{9}a^{5}-31z^{7}a^{5}+42z^{5}a^{5}-30z^{3}a^{5}+7za^{5}+5z^{10}a^{4}-11z^{8}a^{4}+z^{6}a^{4}+5z^{2}a^{4}-2a^{4}+6z^{9}a^{3}-19z^{7}a^{3}+15z^{5}a^{3}-4z^{3}a^{3}+2za^{3}+4z^{8}a^{2}-14z^{6}a^{2}+13z^{4}a^{2}-2z^{2}a^{2}-a^{2}+z^{7}a-3z^{5}a+2z^{3}a}
