− 7 q 9 / 2 + 5 q 7 / 2 − 5 q 5 / 2 + 3 q 3 / 2 − 1 q 21 / 2 + 2 q 19 / 2 − 4 q 17 / 2 + 5 q 15 / 2 − 6 q 13 / 2 + 7 q 11 / 2 + q − 2 q {\displaystyle -{\frac {7}{q^{9/2}}}+{\frac {5}{q^{7/2}}}-{\frac {5}{q^{5/2}}}+{\frac {3}{q^{3/2}}}-{\frac {1}{q^{21/2}}}+{\frac {2}{q^{19/2}}}-{\frac {4}{q^{17/2}}}+{\frac {5}{q^{15/2}}}-{\frac {6}{q^{13/2}}}+{\frac {7}{q^{11/2}}}+{\sqrt {q}}-{\frac {2}{\sqrt {q}}}}
