− q 19 / 2 + 4 q 17 / 2 − 7 q 15 / 2 + 12 q 13 / 2 − 15 q 11 / 2 + 16 q 9 / 2 − 17 q 7 / 2 + 13 q 5 / 2 − 10 q 3 / 2 + 5 q − 3 q + 1 q 3 / 2 {\displaystyle -q^{19/2}+4q^{17/2}-7q^{15/2}+12q^{13/2}-15q^{11/2}+16q^{9/2}-17q^{7/2}+13q^{5/2}-10q^{3/2}+5{\sqrt {q}}-{\frac {3}{\sqrt {q}}}+{\frac {1}{q^{3/2}}}}
