z 9 a 13 − 6 z 7 a 13 + 12 z 5 a 13 − 9 z 3 a 13 + 2 z a 13 + 3 z 10 a 12 − 18 z 8 a 12 + 36 z 6 a 12 − 28 z 4 a 12 + 8 z 2 a 12 − a 12 + 3 z 11 a 11 − 14 z 9 a 11 + 14 z 7 a 11 + 8 z 5 a 11 − 11 z 3 a 11 + z a 11 + z 12 a 10 + 2 z 10 a 10 − 31 z 8 a 10 + 63 z 6 a 10 − 47 z 4 a 10 + 17 z 2 a 10 − 2 a 10 + 5 z 11 a 9 − 22 z 9 a 9 + 25 z 7 a 9 − 13 z 5 a 9 + 12 z 3 a 9 − 4 z a 9 + z 12 a 8 − 13 z 8 a 8 + 16 z 6 a 8 − 9 z 4 a 8 + 6 z 2 a 8 + 2 z 11 a 7 − 7 z 9 a 7 + 8 z 7 a 7 − 17 z 5 a 7 + 17 z 3 a 7 − 6 z a 7 + z 10 a 6 − 11 z 6 a 6 + 15 z 4 a 6 − 13 z 2 a 6 + 4 a 6 + 3 z 7 a 5 − 8 z 5 a 5 + 5 z 3 a 5 − 3 z a 5 + 5 z 4 a 4 − 9 z 2 a 4 + 4 a 4 + 2 z 3 a 3 + z 2 a 2 {\displaystyle z^{9}a^{13}-6z^{7}a^{13}+12z^{5}a^{13}-9z^{3}a^{13}+2za^{13}+3z^{10}a^{12}-18z^{8}a^{12}+36z^{6}a^{12}-28z^{4}a^{12}+8z^{2}a^{12}-a^{12}+3z^{11}a^{11}-14z^{9}a^{11}+14z^{7}a^{11}+8z^{5}a^{11}-11z^{3}a^{11}+za^{11}+z^{12}a^{10}+2z^{10}a^{10}-31z^{8}a^{10}+63z^{6}a^{10}-47z^{4}a^{10}+17z^{2}a^{10}-2a^{10}+5z^{11}a^{9}-22z^{9}a^{9}+25z^{7}a^{9}-13z^{5}a^{9}+12z^{3}a^{9}-4za^{9}+z^{12}a^{8}-13z^{8}a^{8}+16z^{6}a^{8}-9z^{4}a^{8}+6z^{2}a^{8}+2z^{11}a^{7}-7z^{9}a^{7}+8z^{7}a^{7}-17z^{5}a^{7}+17z^{3}a^{7}-6za^{7}+z^{10}a^{6}-11z^{6}a^{6}+15z^{4}a^{6}-13z^{2}a^{6}+4a^{6}+3z^{7}a^{5}-8z^{5}a^{5}+5z^{3}a^{5}-3za^{5}+5z^{4}a^{4}-9z^{2}a^{4}+4a^{4}+2z^{3}a^{3}+z^{2}a^{2}}
