/ 2 2 \
| 1 2 24*x*atan(4*x) 64*x *atan (4*x)|
384*|--------- - atan (4*x) - -------------- + ----------------|
| 2 2 2 |
\1 + 16*x 1 + 16*x 1 + 16*x /
----------------------------------------------------------------
2
/ 2\
\1 + 16*x /
$$\frac{1}{\left(16 x^{2} + 1\right)^{2}} \left(\frac{24576 x^{2} \operatorname{atan}^{2}{\left (4 x \right )}}{16 x^{2} + 1} - \frac{9216 x \operatorname{atan}{\left (4 x \right )}}{16 x^{2} + 1} - 384 \operatorname{atan}^{2}{\left (4 x \right )} + \frac{384}{16 x^{2} + 1}\right)$$