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