q 9 / 2 − 4 q 7 / 2 + 6 q 5 / 2 − 9 q 3 / 2 + 11 q − 12 q + 11 q 3 / 2 − 9 q 5 / 2 + 5 q 7 / 2 − 3 q 9 / 2 + 1 q 11 / 2 {\displaystyle q^{9/2}-4q^{7/2}+6q^{5/2}-9q^{3/2}+11{\sqrt {q}}-{\frac {12}{\sqrt {q}}}+{\frac {11}{q^{3/2}}}-{\frac {9}{q^{5/2}}}+{\frac {5}{q^{7/2}}}-{\frac {3}{q^{9/2}}}+{\frac {1}{q^{11/2}}}}
