q 9 / 2 − 4 q 7 / 2 + 7 q 5 / 2 − 9 q 3 / 2 + 11 q − 14 q + 11 q 3 / 2 − 11 q 5 / 2 + 5 q 7 / 2 − 5 q 9 / 2 + 1 q 11 / 2 − 1 q 13 / 2 {\displaystyle q^{9/2}-4q^{7/2}+7q^{5/2}-9q^{3/2}+11{\sqrt {q}}-{\frac {14}{\sqrt {q}}}+{\frac {11}{q^{3/2}}}-{\frac {11}{q^{5/2}}}+{\frac {5}{q^{7/2}}}-{\frac {5}{q^{9/2}}}+{\frac {1}{q^{11/2}}}-{\frac {1}{q^{13/2}}}}
