− 2 q 12 + 3 q 11 − 5 q 10 + 7 q 9 − 7 q 8 + 7 q 7 − 5 q 6 + 4 q 5 − 2 q 4 + q 3 {\displaystyle -2q^{12}+3q^{11}-5q^{10}+7q^{9}-7q^{8}+7q^{7}-5q^{6}+4q^{5}-2q^{4}+q^{3}}
