q 11 / 2 − 4 q 9 / 2 + 10 q 7 / 2 − 16 q 5 / 2 + 18 q 3 / 2 − 22 q + 19 q − 18 q 3 / 2 + 10 q 5 / 2 − 7 q 7 / 2 + 2 q 9 / 2 − 1 q 11 / 2 {\displaystyle q^{11/2}-4q^{9/2}+10q^{7/2}-16q^{5/2}+18q^{3/2}-22{\sqrt {q}}+{\frac {19}{\sqrt {q}}}-{\frac {18}{q^{3/2}}}+{\frac {10}{q^{5/2}}}-{\frac {7}{q^{7/2}}}+{\frac {2}{q^{9/2}}}-{\frac {1}{q^{11/2}}}}