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