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