q 15 / 2 − 3 q 13 / 2 + 5 q 11 / 2 − 6 q 9 / 2 + 7 q 7 / 2 − 6 q 5 / 2 + 5 q 3 / 2 − 4 q − 1 q 5 / 2 {\displaystyle q^{15/2}-3q^{13/2}+5q^{11/2}-6q^{9/2}+7q^{7/2}-6q^{5/2}+5q^{3/2}-4{\sqrt {q}}-{\frac {1}{q^{5/2}}}}
