− q 11 / 2 + 5 q 9 / 2 − 10 q 7 / 2 + 15 q 5 / 2 − 21 q 3 / 2 + 22 q − 23 q + 20 q 3 / 2 − 14 q 5 / 2 + 8 q 7 / 2 − 4 q 9 / 2 + 1 q 11 / 2 {\displaystyle -q^{11/2}+5q^{9/2}-10q^{7/2}+15q^{5/2}-21q^{3/2}+22{\sqrt {q}}-{\frac {23}{\sqrt {q}}}+{\frac {20}{q^{3/2}}}-{\frac {14}{q^{5/2}}}+{\frac {8}{q^{7/2}}}-{\frac {4}{q^{9/2}}}+{\frac {1}{q^{11/2}}}}