q 9 / 2 − 9 q 9 / 2 − 4 q 7 / 2 + 16 q 7 / 2 + 9 q 5 / 2 − 21 q 5 / 2 − 16 q 3 / 2 + 24 q 3 / 2 − 1 q 13 / 2 + 4 q 11 / 2 + 20 q − 25 q {\displaystyle q^{9/2}-{\frac {9}{q^{9/2}}}-4q^{7/2}+{\frac {16}{q^{7/2}}}+9q^{5/2}-{\frac {21}{q^{5/2}}}-16q^{3/2}+{\frac {24}{q^{3/2}}}-{\frac {1}{q^{13/2}}}+{\frac {4}{q^{11/2}}}+20{\sqrt {q}}-{\frac {25}{\sqrt {q}}}}
