− q 7 / 2 − q 3 / 2 − 2 q − 2 q − 1 q 3 / 2 − 1 q 7 / 2 {\displaystyle -q^{7/2}-q^{3/2}-2{\sqrt {q}}-{\frac {2}{\sqrt {q}}}-{\frac {1}{q^{3/2}}}-{\frac {1}{q^{7/2}}}}
