$$\lim_{x \to \infty}\left(\frac{e^{n} e^{- n - 1} \left(x + 1\right)^{\frac{\left(-1\right) n}{3}} \left(x + 2\right)^{\frac{x}{3} + \frac{1}{3}} n!}{\left(n + 1\right)!}\right) = \infty \operatorname{sign}{\left(\frac{\Gamma\left(n + 1\right)}{\Gamma\left(n + 2\right)} \right)}$$
$$\lim_{x \to 0^-}\left(\frac{e^{n} e^{- n - 1} \left(x + 1\right)^{\frac{\left(-1\right) n}{3}} \left(x + 2\right)^{\frac{x}{3} + \frac{1}{3}} n!}{\left(n + 1\right)!}\right) = \frac{\sqrt[3]{2} n!}{e \left(n + 1\right)!}$$
Más detalles con x→0 a la izquierda$$\lim_{x \to 0^+}\left(\frac{e^{n} e^{- n - 1} \left(x + 1\right)^{\frac{\left(-1\right) n}{3}} \left(x + 2\right)^{\frac{x}{3} + \frac{1}{3}} n!}{\left(n + 1\right)!}\right) = \frac{\sqrt[3]{2} n!}{e \left(n + 1\right)!}$$
Más detalles con x→0 a la derecha$$\lim_{x \to 1^-}\left(\frac{e^{n} e^{- n - 1} \left(x + 1\right)^{\frac{\left(-1\right) n}{3}} \left(x + 2\right)^{\frac{x}{3} + \frac{1}{3}} n!}{\left(n + 1\right)!}\right) = \frac{3^{\frac{2}{3}} e^{- \frac{n \log{\left(2 \right)}}{3} - 1} \Gamma\left(n + 1\right)}{\Gamma\left(n + 2\right)}$$
Más detalles con x→1 a la izquierda$$\lim_{x \to 1^+}\left(\frac{e^{n} e^{- n - 1} \left(x + 1\right)^{\frac{\left(-1\right) n}{3}} \left(x + 2\right)^{\frac{x}{3} + \frac{1}{3}} n!}{\left(n + 1\right)!}\right) = \frac{3^{\frac{2}{3}} e^{- \frac{n \log{\left(2 \right)}}{3} - 1} \Gamma\left(n + 1\right)}{\Gamma\left(n + 2\right)}$$
Más detalles con x→1 a la derecha$$\lim_{x \to -\infty}\left(\frac{e^{n} e^{- n - 1} \left(x + 1\right)^{\frac{\left(-1\right) n}{3}} \left(x + 2\right)^{\frac{x}{3} + \frac{1}{3}} n!}{\left(n + 1\right)!}\right) = \infty \operatorname{sign}{\left(\frac{n!}{\left(n + 1\right)!} \right)} \operatorname{sign}{\left(e^{- \frac{i \pi n}{3}} \right)}$$
Más detalles con x→-oo