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 + 11 z 3 a 11 − 4 z a 11 + 8 z 8 a 10 − 18 z 6 a 10 + 18 z 4 a 10 − 4 z 2 a 10 + 8 z 9 a 9 − 17 z 7 a 9 + 16 z 5 a 9 − z 3 a 9 + 2 z a 9 + 6 z 10 a 8 − 11 z 8 a 8 + 11 z 6 a 8 − 6 z 4 a 8 + 8 z 2 a 8 − 3 a 8 + 2 z 11 a 7 + 8 z 9 a 7 − 35 z 7 a 7 + 53 z 5 a 7 − 39 z 3 a 7 + 11 z a 7 + 11 z 10 a 6 − 31 z 8 a 6 + 37 z 6 a 6 − 29 z 4 a 6 + 9 z 2 a 6 − 3 a 6 + 2 z 11 a 5 + 6 z 9 a 5 − 29 z 7 a 5 + 32 z 5 a 5 − 23 z 3 a 5 + 6 z a 5 + 5 z 10 a 4 − 8 z 8 a 4 − 8 z 6 a 4 + 12 z 4 a 4 − 6 z 2 a 4 + 2 a 4 + 6 z 9 a 3 − 16 z 7 a 3 + 6 z 5 a 3 + 5 z 3 a 3 + 4 z 8 a 2 − 13 z 6 a 2 + 12 z 4 a 2 − 3 z 2 a 2 + a 2 + z 7 a − 3 z 5 a + 3 z 3 a − z 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}+11z^{3}a^{11}-4za^{11}+8z^{8}a^{10}-18z^{6}a^{10}+18z^{4}a^{10}-4z^{2}a^{10}+8z^{9}a^{9}-17z^{7}a^{9}+16z^{5}a^{9}-z^{3}a^{9}+2za^{9}+6z^{10}a^{8}-11z^{8}a^{8}+11z^{6}a^{8}-6z^{4}a^{8}+8z^{2}a^{8}-3a^{8}+2z^{11}a^{7}+8z^{9}a^{7}-35z^{7}a^{7}+53z^{5}a^{7}-39z^{3}a^{7}+11za^{7}+11z^{10}a^{6}-31z^{8}a^{6}+37z^{6}a^{6}-29z^{4}a^{6}+9z^{2}a^{6}-3a^{6}+2z^{11}a^{5}+6z^{9}a^{5}-29z^{7}a^{5}+32z^{5}a^{5}-23z^{3}a^{5}+6za^{5}+5z^{10}a^{4}-8z^{8}a^{4}-8z^{6}a^{4}+12z^{4}a^{4}-6z^{2}a^{4}+2a^{4}+6z^{9}a^{3}-16z^{7}a^{3}+6z^{5}a^{3}+5z^{3}a^{3}+4z^{8}a^{2}-13z^{6}a^{2}+12z^{4}a^{2}-3z^{2}a^{2}+a^{2}+z^{7}a-3z^{5}a+3z^{3}a-za}
