− q 19 / 2 + 3 q 17 / 2 − 6 q 15 / 2 + 10 q 13 / 2 − 14 q 11 / 2 + 16 q 9 / 2 − 16 q 7 / 2 + 13 q 5 / 2 − 11 q 3 / 2 + 6 q − 3 q + 1 q 3 / 2 {\displaystyle -q^{19/2}+3q^{17/2}-6q^{15/2}+10q^{13/2}-14q^{11/2}+16q^{9/2}-16q^{7/2}+13q^{5/2}-11q^{3/2}+6{\sqrt {q}}-{\frac {3}{\sqrt {q}}}+{\frac {1}{q^{3/2}}}}
