− q 7 / 2 + 3 q 5 / 2 − 6 q 3 / 2 + 9 q − 11 q + 11 q 3 / 2 − 11 q 5 / 2 + 8 q 7 / 2 − 5 q 9 / 2 + 2 q 11 / 2 − 1 q 13 / 2 {\displaystyle -q^{7/2}+3q^{5/2}-6q^{3/2}+9{\sqrt {q}}-{\frac {11}{\sqrt {q}}}+{\frac {11}{q^{3/2}}}-{\frac {11}{q^{5/2}}}+{\frac {8}{q^{7/2}}}-{\frac {5}{q^{9/2}}}+{\frac {2}{q^{11/2}}}-{\frac {1}{q^{13/2}}}}
