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