q 28 − q 24 + q 22 − 2 q 20 − 2 q 14 + q 12 − q 10 + 3 q 8 + 2 q 6 + 2 q 2 − 1 {\displaystyle q^{28}-q^{24}+q^{22}-2q^{20}-2q^{14}+q^{12}-q^{10}+3q^{8}+2q^{6}+2q^{2}-1}
