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