q 42 + q 38 − 2 q 34 − 2 q 32 − 2 q 30 − 2 q 28 − q 26 + q 24 + q 22 + 2 q 20 + q 18 + 2 q 16 + q 14 + q 12 + 2 q 10 + q 8 + q 4 {\displaystyle q^{42}+q^{38}-2q^{34}-2q^{32}-2q^{30}-2q^{28}-q^{26}+q^{24}+q^{22}+2q^{20}+q^{18}+2q^{16}+q^{14}+q^{12}+2q^{10}+q^{8}+q^{4}}
