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