2 q − 5 q + 7 q 3 / 2 − 10 q 5 / 2 + 9 q 7 / 2 − 10 q 9 / 2 + 8 q 11 / 2 − 5 q 13 / 2 + 3 q 15 / 2 − 1 q 17 / 2 {\displaystyle 2{\sqrt {q}}-{\frac {5}{\sqrt {q}}}+{\frac {7}{q^{3/2}}}-{\frac {10}{q^{5/2}}}+{\frac {9}{q^{7/2}}}-{\frac {10}{q^{9/2}}}+{\frac {8}{q^{11/2}}}-{\frac {5}{q^{13/2}}}+{\frac {3}{q^{15/2}}}-{\frac {1}{q^{17/2}}}}
