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