q 23 / 2 − 3 q 21 / 2 + 6 q 19 / 2 − 10 q 17 / 2 + 12 q 15 / 2 − 13 q 13 / 2 + 13 q 11 / 2 − 11 q 9 / 2 + 7 q 7 / 2 − 5 q 5 / 2 + 2 q 3 / 2 − q {\displaystyle q^{23/2}-3q^{21/2}+6q^{19/2}-10q^{17/2}+12q^{15/2}-13q^{13/2}+13q^{11/2}-11q^{9/2}+7q^{7/2}-5q^{5/2}+2q^{3/2}-{\sqrt {q}}}
