− q 13 / 2 + 4 q 11 / 2 − 6 q 9 / 2 + 8 q 7 / 2 − 10 q 5 / 2 + 9 q 3 / 2 − 9 q + 5 q − 3 q 3 / 2 + 1 q 5 / 2 {\displaystyle -q^{13/2}+4q^{11/2}-6q^{9/2}+8q^{7/2}-10q^{5/2}+9q^{3/2}-9{\sqrt {q}}+{\frac {5}{\sqrt {q}}}-{\frac {3}{q^{3/2}}}+{\frac {1}{q^{5/2}}}}