− q 5 / 2 + q 3 / 2 − q − 1 q 5 / 2 − 1 q 9 / 2 + 1 q 11 / 2 {\displaystyle -q^{5/2}+q^{3/2}-{\sqrt {q}}-{\frac {1}{q^{5/2}}}-{\frac {1}{q^{9/2}}}+{\frac {1}{q^{11/2}}}}
