z 5 a 13 − z 3 a 13 + 4 z 6 a 12 − 5 z 4 a 12 + z 2 a 12 + 8 z 7 a 11 − 12 z 5 a 11 + 7 z 3 a 11 − 2 z a 11 + 10 z 8 a 10 − 14 z 6 a 10 + 9 z 4 a 10 − 4 z 2 a 10 + a 10 + 8 z 9 a 9 − 2 z 7 a 9 − 15 z 5 a 9 + 14 z 3 a 9 − 2 z a 9 + 4 z 10 a 8 + 13 z 8 a 8 − 44 z 6 a 8 + 43 z 4 a 8 − 17 z 2 a 8 + 3 a 8 + z 11 a 7 + 16 z 9 a 7 − 36 z 7 a 7 + 21 z 5 a 7 − 3 z 3 a 7 + 8 z 10 a 6 − z 8 a 6 − 42 z 6 a 6 + 57 z 4 a 6 − 29 z 2 a 6 + 5 a 6 + z 11 a 5 + 14 z 9 a 5 − 45 z 7 a 5 + 41 z 5 a 5 − 15 z 3 a 5 + z a 5 + 4 z 10 a 4 − 30 z 6 a 4 + 43 z 4 a 4 − 22 z 2 a 4 + 4 a 4 + 6 z 9 a 3 − 18 z 7 a 3 + 15 z 5 a 3 − 4 z 3 a 3 + z a 3 + 4 z 8 a 2 − 14 z 6 a 2 + 15 z 4 a 2 − 5 z 2 a 2 + z 7 a − 3 z 5 a + 2 z 3 a {\displaystyle z^{5}a^{13}-z^{3}a^{13}+4z^{6}a^{12}-5z^{4}a^{12}+z^{2}a^{12}+8z^{7}a^{11}-12z^{5}a^{11}+7z^{3}a^{11}-2za^{11}+10z^{8}a^{10}-14z^{6}a^{10}+9z^{4}a^{10}-4z^{2}a^{10}+a^{10}+8z^{9}a^{9}-2z^{7}a^{9}-15z^{5}a^{9}+14z^{3}a^{9}-2za^{9}+4z^{10}a^{8}+13z^{8}a^{8}-44z^{6}a^{8}+43z^{4}a^{8}-17z^{2}a^{8}+3a^{8}+z^{11}a^{7}+16z^{9}a^{7}-36z^{7}a^{7}+21z^{5}a^{7}-3z^{3}a^{7}+8z^{10}a^{6}-z^{8}a^{6}-42z^{6}a^{6}+57z^{4}a^{6}-29z^{2}a^{6}+5a^{6}+z^{11}a^{5}+14z^{9}a^{5}-45z^{7}a^{5}+41z^{5}a^{5}-15z^{3}a^{5}+za^{5}+4z^{10}a^{4}-30z^{6}a^{4}+43z^{4}a^{4}-22z^{2}a^{4}+4a^{4}+6z^{9}a^{3}-18z^{7}a^{3}+15z^{5}a^{3}-4z^{3}a^{3}+za^{3}+4z^{8}a^{2}-14z^{6}a^{2}+15z^{4}a^{2}-5z^{2}a^{2}+z^{7}a-3z^{5}a+2z^{3}a}
