q 5 / 2 − 4 q 3 / 2 + 8 q − 12 q + 15 q 3 / 2 − 17 q 5 / 2 + 16 q 7 / 2 − 13 q 9 / 2 + 9 q 11 / 2 − 6 q 13 / 2 + 2 q 15 / 2 − 1 q 17 / 2 {\displaystyle q^{5/2}-4q^{3/2}+8{\sqrt {q}}-{\frac {12}{\sqrt {q}}}+{\frac {15}{q^{3/2}}}-{\frac {17}{q^{5/2}}}+{\frac {16}{q^{7/2}}}-{\frac {13}{q^{9/2}}}+{\frac {9}{q^{11/2}}}-{\frac {6}{q^{13/2}}}+{\frac {2}{q^{15/2}}}-{\frac {1}{q^{17/2}}}}