z 5 a 13 − 2 z 3 a 13 + z a 13 + 3 z 6 a 12 − 5 z 4 a 12 + 2 z 2 a 12 + 5 z 7 a 11 − 6 z 5 a 11 + z 3 a 11 + 7 z 8 a 10 − 11 z 6 a 10 + 11 z 4 a 10 − 8 z 2 a 10 + 2 a 10 + 7 z 9 a 9 − 10 z 7 a 9 + 8 z 5 a 9 − 3 z 3 a 9 + z a 9 + 4 z 10 a 8 + 6 z 8 a 8 − 36 z 6 a 8 + 54 z 4 a 8 − 31 z 2 a 8 + 6 a 8 + z 11 a 7 + 15 z 9 a 7 − 47 z 7 a 7 + 51 z 5 a 7 − 23 z 3 a 7 + 5 z a 7 + 8 z 10 a 6 − 5 z 8 a 6 − 42 z 6 a 6 + 73 z 4 a 6 − 43 z 2 a 6 + 8 a 6 + z 11 a 5 + 14 z 9 a 5 − 51 z 7 a 5 + 53 z 5 a 5 − 24 z 3 a 5 + 5 z a 5 + 4 z 10 a 4 − 34 z 6 a 4 + 50 z 4 a 4 − 28 z 2 a 4 + 5 a 4 + 6 z 9 a 3 − 18 z 7 a 3 + 14 z 5 a 3 − 5 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}-5z^{4}a^{12}+2z^{2}a^{12}+5z^{7}a^{11}-6z^{5}a^{11}+z^{3}a^{11}+7z^{8}a^{10}-11z^{6}a^{10}+11z^{4}a^{10}-8z^{2}a^{10}+2a^{10}+7z^{9}a^{9}-10z^{7}a^{9}+8z^{5}a^{9}-3z^{3}a^{9}+za^{9}+4z^{10}a^{8}+6z^{8}a^{8}-36z^{6}a^{8}+54z^{4}a^{8}-31z^{2}a^{8}+6a^{8}+z^{11}a^{7}+15z^{9}a^{7}-47z^{7}a^{7}+51z^{5}a^{7}-23z^{3}a^{7}+5za^{7}+8z^{10}a^{6}-5z^{8}a^{6}-42z^{6}a^{6}+73z^{4}a^{6}-43z^{2}a^{6}+8a^{6}+z^{11}a^{5}+14z^{9}a^{5}-51z^{7}a^{5}+53z^{5}a^{5}-24z^{3}a^{5}+5za^{5}+4z^{10}a^{4}-34z^{6}a^{4}+50z^{4}a^{4}-28z^{2}a^{4}+5a^{4}+6z^{9}a^{3}-18z^{7}a^{3}+14z^{5}a^{3}-5z^{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}
