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