− 2 q 9 / 2 + 2 q 7 / 2 − 3 q 5 / 2 + 2 q 3 / 2 − 1 q 13 / 2 + 1 q 11 / 2 + q − 2 q {\displaystyle -{\frac {2}{q^{9/2}}}+{\frac {2}{q^{7/2}}}-{\frac {3}{q^{5/2}}}+{\frac {2}{q^{3/2}}}-{\frac {1}{q^{13/2}}}+{\frac {1}{q^{11/2}}}+{\sqrt {q}}-{\frac {2}{\sqrt {q}}}}
