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 − 7 z 5 a 11 + 3 z 3 a 11 − z a 11 + 10 z 8 a 10 − 18 z 6 a 10 + 21 z 4 a 10 − 11 z 2 a 10 + 2 a 10 + 11 z 9 a 9 − 18 z 7 a 9 + 15 z 5 a 9 − 3 z 3 a 9 + 7 z 10 a 8 + 4 z 8 a 8 − 41 z 6 a 8 + 59 z 4 a 8 − 30 z 2 a 8 + 5 a 8 + 2 z 11 a 7 + 21 z 9 a 7 − 65 z 7 a 7 + 65 z 5 a 7 − 28 z 3 a 7 + 4 z a 7 + 14 z 10 a 6 − 17 z 8 a 6 − 34 z 6 a 6 + 62 z 4 a 6 − 35 z 2 a 6 + 6 a 6 + 2 z 11 a 5 + 19 z 9 a 5 − 67 z 7 a 5 + 62 z 5 a 5 − 24 z 3 a 5 + 3 z a 5 + 7 z 10 a 4 − 6 z 8 a 4 − 28 z 6 a 4 + 39 z 4 a 4 − 19 z 2 a 4 + 4 a 4 + 9 z 9 a 3 − 25 z 7 a 3 + 18 z 5 a 3 − 3 z 3 a 3 + z a 3 + 5 z 8 a 2 − 14 z 6 a 2 + 11 z 4 a 2 − 2 z 2 a 2 + z 7 a − 2 z 5 a + 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}-7z^{5}a^{11}+3z^{3}a^{11}-za^{11}+10z^{8}a^{10}-18z^{6}a^{10}+21z^{4}a^{10}-11z^{2}a^{10}+2a^{10}+11z^{9}a^{9}-18z^{7}a^{9}+15z^{5}a^{9}-3z^{3}a^{9}+7z^{10}a^{8}+4z^{8}a^{8}-41z^{6}a^{8}+59z^{4}a^{8}-30z^{2}a^{8}+5a^{8}+2z^{11}a^{7}+21z^{9}a^{7}-65z^{7}a^{7}+65z^{5}a^{7}-28z^{3}a^{7}+4za^{7}+14z^{10}a^{6}-17z^{8}a^{6}-34z^{6}a^{6}+62z^{4}a^{6}-35z^{2}a^{6}+6a^{6}+2z^{11}a^{5}+19z^{9}a^{5}-67z^{7}a^{5}+62z^{5}a^{5}-24z^{3}a^{5}+3za^{5}+7z^{10}a^{4}-6z^{8}a^{4}-28z^{6}a^{4}+39z^{4}a^{4}-19z^{2}a^{4}+4a^{4}+9z^{9}a^{3}-25z^{7}a^{3}+18z^{5}a^{3}-3z^{3}a^{3}+za^{3}+5z^{8}a^{2}-14z^{6}a^{2}+11z^{4}a^{2}-2z^{2}a^{2}+z^{7}a-2z^{5}a+z^{3}a}
