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