$$\lim_{n \to \infty}\left(\frac{\sin{\left(n \right)}}{n^{3}}\right) = 0$$
$$\lim_{n \to 0^-}\left(\frac{\sin{\left(n \right)}}{n^{3}}\right) = \infty$$
More at n→0 from the left$$\lim_{n \to 0^+}\left(\frac{\sin{\left(n \right)}}{n^{3}}\right) = \infty$$
More at n→0 from the right$$\lim_{n \to 1^-}\left(\frac{\sin{\left(n \right)}}{n^{3}}\right) = \sin{\left(1 \right)}$$
More at n→1 from the left$$\lim_{n \to 1^+}\left(\frac{\sin{\left(n \right)}}{n^{3}}\right) = \sin{\left(1 \right)}$$
More at n→1 from the right$$\lim_{n \to -\infty}\left(\frac{\sin{\left(n \right)}}{n^{3}}\right) = 0$$
More at n→-oo