− 12 q 9 / 2 − q 7 / 2 + 17 q 7 / 2 + 4 q 5 / 2 − 20 q 5 / 2 − 9 q 3 / 2 + 20 q 3 / 2 + 1 q 15 / 2 − 3 q 13 / 2 + 7 q 11 / 2 + 13 q − 19 q {\displaystyle -{\frac {12}{q^{9/2}}}-q^{7/2}+{\frac {17}{q^{7/2}}}+4q^{5/2}-{\frac {20}{q^{5/2}}}-9q^{3/2}+{\frac {20}{q^{3/2}}}+{\frac {1}{q^{15/2}}}-{\frac {3}{q^{13/2}}}+{\frac {7}{q^{11/2}}}+13{\sqrt {q}}-{\frac {19}{\sqrt {q}}}}