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