q 11 / 2 − 4 q 9 / 2 + 7 q 7 / 2 − 11 q 5 / 2 + 13 q 3 / 2 − 15 q + 12 q − 12 q 3 / 2 + 6 q 5 / 2 − 5 q 7 / 2 + 1 q 9 / 2 − 1 q 11 / 2 {\displaystyle q^{11/2}-4q^{9/2}+7q^{7/2}-11q^{5/2}+13q^{3/2}-15{\sqrt {q}}+{\frac {12}{\sqrt {q}}}-{\frac {12}{q^{3/2}}}+{\frac {6}{q^{5/2}}}-{\frac {5}{q^{7/2}}}+{\frac {1}{q^{9/2}}}-{\frac {1}{q^{11/2}}}}
