q 68 + 2 q 64 − 2 q 62 + 2 q 60 − 4 q 58 − 2 q 54 + 2 q 50 + 4 q 46 − 3 q 44 + 2 q 42 − 4 q 40 + 2 q 38 − 4 q 36 − 2 q 32 − 2 q 30 + 2 q 24 + 2 q 22 + 3 q 20 + 2 q 18 + 2 q 16 + 2 q 12 + 2 q 8 + q 4 {\displaystyle q^{68}+2q^{64}-2q^{62}+2q^{60}-4q^{58}-2q^{54}+2q^{50}+4q^{46}-3q^{44}+2q^{42}-4q^{40}+2q^{38}-4q^{36}-2q^{32}-2q^{30}+2q^{24}+2q^{22}+3q^{20}+2q^{18}+2q^{16}+2q^{12}+2q^{8}+q^{4}}