− 1 q + 3 q 3 / 2 − 7 q 5 / 2 + 11 q 7 / 2 − 16 q 9 / 2 + 18 q 11 / 2 − 19 q 13 / 2 + 17 q 15 / 2 − 13 q 17 / 2 + 8 q 19 / 2 − 4 q 21 / 2 + 1 q 23 / 2 {\displaystyle -{\frac {1}{\sqrt {q}}}+{\frac {3}{q^{3/2}}}-{\frac {7}{q^{5/2}}}+{\frac {11}{q^{7/2}}}-{\frac {16}{q^{9/2}}}+{\frac {18}{q^{11/2}}}-{\frac {19}{q^{13/2}}}+{\frac {17}{q^{15/2}}}-{\frac {13}{q^{17/2}}}+{\frac {8}{q^{19/2}}}-{\frac {4}{q^{21/2}}}+{\frac {1}{q^{23/2}}}}
