− q 13 / 2 + 4 q 11 / 2 − 10 q 9 / 2 + 17 q 7 / 2 − 23 q 5 / 2 + 26 q 3 / 2 − 26 q + 22 q − 17 q 3 / 2 + 9 q 5 / 2 − 4 q 7 / 2 + 1 q 9 / 2 {\displaystyle -q^{13/2}+4q^{11/2}-10q^{9/2}+17q^{7/2}-23q^{5/2}+26q^{3/2}-26{\sqrt {q}}+{\frac {22}{\sqrt {q}}}-{\frac {17}{q^{3/2}}}+{\frac {9}{q^{5/2}}}-{\frac {4}{q^{7/2}}}+{\frac {1}{q^{9/2}}}}
