− 13 q 9 / 2 − q 7 / 2 + 18 q 7 / 2 + 3 q 5 / 2 − 21 q 5 / 2 − 7 q 3 / 2 + 19 q 3 / 2 + 1 q 15 / 2 − 4 q 13 / 2 + 9 q 11 / 2 + 12 q − 18 q {\displaystyle -{\frac {13}{q^{9/2}}}-q^{7/2}+{\frac {18}{q^{7/2}}}+3q^{5/2}-{\frac {21}{q^{5/2}}}-7q^{3/2}+{\frac {19}{q^{3/2}}}+{\frac {1}{q^{15/2}}}-{\frac {4}{q^{13/2}}}+{\frac {9}{q^{11/2}}}+12{\sqrt {q}}-{\frac {18}{\sqrt {q}}}}
