q 23 / 2 − 3 q 21 / 2 + 7 q 19 / 2 − 11 q 17 / 2 + 14 q 15 / 2 − 15 q 13 / 2 + 15 q 11 / 2 − 13 q 9 / 2 + 8 q 7 / 2 − 6 q 5 / 2 + 2 q 3 / 2 − q {\displaystyle q^{23/2}-3q^{21/2}+7q^{19/2}-11q^{17/2}+14q^{15/2}-15q^{13/2}+15q^{11/2}-13q^{9/2}+8q^{7/2}-6q^{5/2}+2q^{3/2}-{\sqrt {q}}}
