− q 7 / 2 + 3 q 5 / 2 − 7 q 3 / 2 + 11 q − 17 q + 19 q 3 / 2 − 19 q 5 / 2 + 17 q 7 / 2 − 13 q 9 / 2 + 8 q 11 / 2 − 4 q 13 / 2 + 1 q 15 / 2 {\displaystyle -q^{7/2}+3q^{5/2}-7q^{3/2}+11{\sqrt {q}}-{\frac {17}{\sqrt {q}}}+{\frac {19}{q^{3/2}}}-{\frac {19}{q^{5/2}}}+{\frac {17}{q^{7/2}}}-{\frac {13}{q^{9/2}}}+{\frac {8}{q^{11/2}}}-{\frac {4}{q^{13/2}}}+{\frac {1}{q^{15/2}}}}
