q 23 / 2 − 2 q 21 / 2 + 4 q 19 / 2 − 6 q 17 / 2 + 9 q 15 / 2 − 10 q 13 / 2 + 9 q 11 / 2 − 9 q 9 / 2 + 6 q 7 / 2 − 5 q 5 / 2 + 2 q 3 / 2 − q {\displaystyle q^{23/2}-2q^{21/2}+4q^{19/2}-6q^{17/2}+9q^{15/2}-10q^{13/2}+9q^{11/2}-9q^{9/2}+6q^{7/2}-5q^{5/2}+2q^{3/2}-{\sqrt {q}}}
