q 66 + q 62 − q 58 − q 56 − q 54 − q 52 − q 50 − q 46 − q 42 + q 38 + q 36 + q 34 + q 32 + q 30 + q 16 + q 12 + 2 q 10 + q 8 + q 4 {\displaystyle q^{66}+q^{62}-q^{58}-q^{56}-q^{54}-q^{52}-q^{50}-q^{46}-q^{42}+q^{38}+q^{36}+q^{34}+q^{32}+q^{30}+q^{16}+q^{12}+2q^{10}+q^{8}+q^{4}}
