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