q 11 / 2 − 4 q 9 / 2 + 10 q 7 / 2 − 15 q 5 / 2 + 19 q 3 / 2 − 22 q + 20 q − 18 q 3 / 2 + 12 q 5 / 2 − 7 q 7 / 2 + 3 q 9 / 2 − 1 q 11 / 2 {\displaystyle q^{11/2}-4q^{9/2}+10q^{7/2}-15q^{5/2}+19q^{3/2}-22{\sqrt {q}}+{\frac {20}{\sqrt {q}}}-{\frac {18}{q^{3/2}}}+{\frac {12}{q^{5/2}}}-{\frac {7}{q^{7/2}}}+{\frac {3}{q^{9/2}}}-{\frac {1}{q^{11/2}}}}
