− q 36 − 2 q 26 − q 22 + q 20 + 2 q 18 + q 16 + 2 q 14 + q 10 {\displaystyle -q^{36}-2q^{26}-q^{22}+q^{20}+2q^{18}+q^{16}+2q^{14}+q^{10}}