/ 4 1 \
4*|-1 + ----------- - ------------------|
| 2 / 4 \ / 4 \ /2\|
| x *|1 + --| x*|1 + --|*acot|-||
| | 2| | 2| \x/|
\ \ x / \ x / /
-----------------------------------------
3 / 4 \ /2\
x *|1 + --|*acot|-|
| 2| \x/
\ x /
$$\frac{-4 - \frac{4}{x \left(1 + \frac{4}{x^{2}}\right) \operatorname{acot}{\left (\frac{2}{x} \right )}} + \frac{16}{x^{2} \left(1 + \frac{4}{x^{2}}\right)}}{x^{3} \left(1 + \frac{4}{x^{2}}\right) \operatorname{acot}{\left (\frac{2}{x} \right )}}$$
/ 28 64 24 4 6 \
4*|3 - ----------- + ------------ - -------------------- + --------------------- + ------------------|
| 2 / 4 \ 2 2 2 / 4 \ /2\|
| x *|1 + --| 4 / 4 \ 3 / 4 \ /2\ 2 / 4 \ 2/2\ x*|1 + --|*acot|-||
| | 2| x *|1 + --| x *|1 + --| *acot|-| x *|1 + --| *acot |-| | 2| \x/|
| \ x / | 2| | 2| \x/ | 2| \x/ \ x / |
\ \ x / \ x / \ x / /
------------------------------------------------------------------------------------------------------
4 / 4 \ /2\
x *|1 + --|*acot|-|
| 2| \x/
\ x /
$$\frac{1}{x^{4} \left(1 + \frac{4}{x^{2}}\right) \operatorname{acot}{\left (\frac{2}{x} \right )}} \left(12 + \frac{24}{x \left(1 + \frac{4}{x^{2}}\right) \operatorname{acot}{\left (\frac{2}{x} \right )}} - \frac{112}{x^{2} \left(1 + \frac{4}{x^{2}}\right)} + \frac{16}{x^{2} \left(1 + \frac{4}{x^{2}}\right)^{2} \operatorname{acot}^{2}{\left (\frac{2}{x} \right )}} - \frac{96}{x^{3} \left(1 + \frac{4}{x^{2}}\right)^{2} \operatorname{acot}{\left (\frac{2}{x} \right )}} + \frac{256}{x^{4} \left(1 + \frac{4}{x^{2}}\right)^{2}}\right)$$