q 15 / 2 − 4 q 13 / 2 + 8 q 11 / 2 − 12 q 9 / 2 + 16 q 7 / 2 − 17 q 5 / 2 + 17 q 3 / 2 − 15 q + 9 q − 6 q 3 / 2 + 2 q 5 / 2 − 1 q 7 / 2 {\displaystyle q^{15/2}-4q^{13/2}+8q^{11/2}-12q^{9/2}+16q^{7/2}-17q^{5/2}+17q^{3/2}-15{\sqrt {q}}+{\frac {9}{\sqrt {q}}}-{\frac {6}{q^{3/2}}}+{\frac {2}{q^{5/2}}}-{\frac {1}{q^{7/2}}}}
