− q 9 / 2 + q 7 / 2 − 1 q 7 / 2 − 2 q 5 / 2 + 1 q 5 / 2 + 3 q 3 / 2 − 2 q 3 / 2 − 3 q + 2 q {\displaystyle -q^{9/2}+q^{7/2}-{\frac {1}{q^{7/2}}}-2q^{5/2}+{\frac {1}{q^{5/2}}}+3q^{3/2}-{\frac {2}{q^{3/2}}}-3{\sqrt {q}}+{\frac {2}{\sqrt {q}}}}
