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