− q 7 / 2 + 4 q 5 / 2 − 9 q 3 / 2 + 17 q − 25 q + 28 q 3 / 2 − 30 q 5 / 2 + 26 q 7 / 2 − 20 q 9 / 2 + 13 q 11 / 2 − 6 q 13 / 2 + 1 q 15 / 2 {\displaystyle -q^{7/2}+4q^{5/2}-9q^{3/2}+17{\sqrt {q}}-{\frac {25}{\sqrt {q}}}+{\frac {28}{q^{3/2}}}-{\frac {30}{q^{5/2}}}+{\frac {26}{q^{7/2}}}-{\frac {20}{q^{9/2}}}+{\frac {13}{q^{11/2}}}-{\frac {6}{q^{13/2}}}+{\frac {1}{q^{15/2}}}}
