− q 13 / 2 + 4 q 11 / 2 − 9 q 9 / 2 + 16 q 7 / 2 − 22 q 5 / 2 + 25 q 3 / 2 − 26 q + 22 q − 17 q 3 / 2 + 10 q 5 / 2 − 5 q 7 / 2 + 1 q 9 / 2 {\displaystyle -q^{13/2}+4q^{11/2}-9q^{9/2}+16q^{7/2}-22q^{5/2}+25q^{3/2}-26{\sqrt {q}}+{\frac {22}{\sqrt {q}}}-{\frac {17}{q^{3/2}}}+{\frac {10}{q^{5/2}}}-{\frac {5}{q^{7/2}}}+{\frac {1}{q^{9/2}}}}
