− q 11 / 2 + 4 q 9 / 2 − 9 q 7 / 2 + 14 q 5 / 2 − 20 q 3 / 2 + 22 q − 23 q + 20 q 3 / 2 − 15 q 5 / 2 + 9 q 7 / 2 − 4 q 9 / 2 + 1 q 11 / 2 {\displaystyle -q^{11/2}+4q^{9/2}-9q^{7/2}+14q^{5/2}-20q^{3/2}+22{\sqrt {q}}-{\frac {23}{\sqrt {q}}}+{\frac {20}{q^{3/2}}}-{\frac {15}{q^{5/2}}}+{\frac {9}{q^{7/2}}}-{\frac {4}{q^{9/2}}}+{\frac {1}{q^{11/2}}}}