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