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