q 15 / 2 − 3 q 13 / 2 + 7 q 11 / 2 − 11 q 9 / 2 + 14 q 7 / 2 − 16 q 5 / 2 + 16 q 3 / 2 − 14 q + 9 q − 6 q 3 / 2 + 2 q 5 / 2 − 1 q 7 / 2 {\displaystyle q^{15/2}-3q^{13/2}+7q^{11/2}-11q^{9/2}+14q^{7/2}-16q^{5/2}+16q^{3/2}-14{\sqrt {q}}+{\frac {9}{\sqrt {q}}}-{\frac {6}{q^{3/2}}}+{\frac {2}{q^{5/2}}}-{\frac {1}{q^{7/2}}}}
