q 9 / 2 − 2 q 9 / 2 − 3 q 7 / 2 + 6 q 7 / 2 + 6 q 5 / 2 − 9 q 5 / 2 − 10 q 3 / 2 + 11 q 3 / 2 + 11 q − 13 q {\displaystyle q^{9/2}-{\frac {2}{q^{9/2}}}-3q^{7/2}+{\frac {6}{q^{7/2}}}+6q^{5/2}-{\frac {9}{q^{5/2}}}-10q^{3/2}+{\frac {11}{q^{3/2}}}+11{\sqrt {q}}-{\frac {13}{\sqrt {q}}}}