− q 7 / 2 + 5 q 5 / 2 − 11 q 3 / 2 + 15 q − 22 q + 20 q 3 / 2 − 22 q 5 / 2 + 15 q 7 / 2 − 11 q 9 / 2 + 5 q 11 / 2 − 1 q 13 / 2 {\displaystyle -q^{7/2}+5q^{5/2}-11q^{3/2}+15{\sqrt {q}}-{\frac {22}{\sqrt {q}}}+{\frac {20}{q^{3/2}}}-{\frac {22}{q^{5/2}}}+{\frac {15}{q^{7/2}}}-{\frac {11}{q^{9/2}}}+{\frac {5}{q^{11/2}}}-{\frac {1}{q^{13/2}}}}
