− q 19 / 2 + 3 q 17 / 2 − 5 q 15 / 2 + 10 q 13 / 2 − 14 q 11 / 2 + 16 q 9 / 2 − 17 q 7 / 2 + 14 q 5 / 2 − 12 q 3 / 2 + 7 q − 4 q + 1 q 3 / 2 {\displaystyle -q^{19/2}+3q^{17/2}-5q^{15/2}+10q^{13/2}-14q^{11/2}+16q^{9/2}-17q^{7/2}+14q^{5/2}-12q^{3/2}+7{\sqrt {q}}-{\frac {4}{\sqrt {q}}}+{\frac {1}{q^{3/2}}}}
