q 3 / 2 − 5 q + 11 q − 20 q 3 / 2 + 26 q 5 / 2 − 31 q 7 / 2 + 31 q 9 / 2 − 27 q 11 / 2 + 20 q 13 / 2 − 12 q 15 / 2 + 5 q 17 / 2 − 1 q 19 / 2 {\displaystyle q^{3/2}-5{\sqrt {q}}+{\frac {11}{\sqrt {q}}}-{\frac {20}{q^{3/2}}}+{\frac {26}{q^{5/2}}}-{\frac {31}{q^{7/2}}}+{\frac {31}{q^{9/2}}}-{\frac {27}{q^{11/2}}}+{\frac {20}{q^{13/2}}}-{\frac {12}{q^{15/2}}}+{\frac {5}{q^{17/2}}}-{\frac {1}{q^{19/2}}}}
