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