q 22 − 2 q 14 − q 12 − q 10 + q 8 + 2 q 6 + q 4 + 2 q 2 {\displaystyle q^{22}-2q^{14}-q^{12}-q^{10}+q^{8}+2q^{6}+q^{4}+2q^{2}}