q 15 / 2 − 5 q 13 / 2 + 11 q 11 / 2 − 17 q 9 / 2 + 23 q 7 / 2 − 27 q 5 / 2 + 25 q 3 / 2 − 23 q + 16 q − 9 q 3 / 2 + 4 q 5 / 2 − 1 q 7 / 2 {\displaystyle q^{15/2}-5q^{13/2}+11q^{11/2}-17q^{9/2}+23q^{7/2}-27q^{5/2}+25q^{3/2}-23{\sqrt {q}}+{\frac {16}{\sqrt {q}}}-{\frac {9}{q^{3/2}}}+{\frac {4}{q^{5/2}}}-{\frac {1}{q^{7/2}}}}
