/ / 2 \ \
| | 36*x | |
| 54*|-1 + --------| |
| 2 | 2| |
x | 3 9*log (2) \ 1 + 9*x / 162*x*log(2)|
2 *|log (2)*atan(3*x) + --------- + ------------------ - ------------|
| 2 2 2 |
| 1 + 9*x / 2\ / 2\ |
\ \1 + 9*x / \1 + 9*x / /
$$2^{x} \left(- \frac{162 x \log{\left(2 \right)}}{\left(9 x^{2} + 1\right)^{2}} + \log{\left(2 \right)}^{3} \operatorname{atan}{\left(3 x \right)} + \frac{9 \log{\left(2 \right)}^{2}}{9 x^{2} + 1} + \frac{54 \left(\frac{36 x^{2}}{9 x^{2} + 1} - 1\right)}{\left(9 x^{2} + 1\right)^{2}}\right)$$