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