4 q 9 / 2 − 4 q 9 / 2 − 8 q 7 / 2 + 9 q 7 / 2 + 13 q 5 / 2 − 15 q 5 / 2 − 19 q 3 / 2 + 19 q 3 / 2 − q 11 / 2 + 1 q 11 / 2 + 21 q − 22 q {\displaystyle 4q^{9/2}-{\frac {4}{q^{9/2}}}-8q^{7/2}+{\frac {9}{q^{7/2}}}+13q^{5/2}-{\frac {15}{q^{5/2}}}-19q^{3/2}+{\frac {19}{q^{3/2}}}-q^{11/2}+{\frac {1}{q^{11/2}}}+21{\sqrt {q}}-{\frac {22}{\sqrt {q}}}}