− 9 q 9 / 2 + 13 q 7 / 2 − 1 q 7 / 2 − 17 q 5 / 2 + 4 q 5 / 2 + 18 q 3 / 2 − 9 q 3 / 2 − q 13 / 2 + 4 q 11 / 2 − 17 q + 13 q {\displaystyle -9q^{9/2}+13q^{7/2}-{\frac {1}{q^{7/2}}}-17q^{5/2}+{\frac {4}{q^{5/2}}}+18q^{3/2}-{\frac {9}{q^{3/2}}}-q^{13/2}+4q^{11/2}-17{\sqrt {q}}+{\frac {13}{\sqrt {q}}}}