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