2 q 11 / 2 − 6 q 9 / 2 + 10 q 7 / 2 − 14 q 5 / 2 + 15 q 3 / 2 − 15 q + 12 q − 9 q 3 / 2 + 4 q 5 / 2 − 1 q 7 / 2 {\displaystyle 2q^{11/2}-6q^{9/2}+10q^{7/2}-14q^{5/2}+15q^{3/2}-15{\sqrt {q}}+{\frac {12}{\sqrt {q}}}-{\frac {9}{q^{3/2}}}+{\frac {4}{q^{5/2}}}-{\frac {1}{q^{7/2}}}}