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