Let the solution curve $y=y(x)$ of the differential equation \[ \frac{dy}{dx}=\frac{3x^5\tan^{-1}(x^3)}{(1+x^6)^{3/2}}\, y = 2x \exp\left\{\frac{x^3-\tan^{-1}(x^3)}{\sqrt{1+x^6}}\right\} \] pass through the origin. Then $y(1)$ is equal to: