q 12 − 5 q 11 + 11 q 10 − 18 q 9 + 24 q 8 − 27 q 7 + 26 q 6 − 22 q 5 + 16 q 4 − 8 q 3 + 3 q 2 {\displaystyle q^{12}-5q^{11}+11q^{10}-18q^{9}+24q^{8}-27q^{7}+26q^{6}-22q^{5}+16q^{4}-8q^{3}+3q^{2}}