− q + 1 q − 2 q 3 / 2 + 1 q 5 / 2 − 1 q 7 / 2 + 1 q 9 / 2 − 1 q 13 / 2 + 1 q 15 / 2 − 1 q 17 / 2 {\displaystyle -{\sqrt {q}}+{\frac {1}{\sqrt {q}}}-{\frac {2}{q^{3/2}}}+{\frac {1}{q^{5/2}}}-{\frac {1}{q^{7/2}}}+{\frac {1}{q^{9/2}}}-{\frac {1}{q^{13/2}}}+{\frac {1}{q^{15/2}}}-{\frac {1}{q^{17/2}}}}
