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