Question

[Nguyễn Minh Huy]

Tìm số tự nhiên n thỏa mãn \(\frac{C_n^0}{1.2}+\frac{C_n^1}{2.3}+\frac{C_n^2}{3.4}+...+\frac{C_n^n}{\left(n+1\right)\left(n+2\right)}=\frac{2^{100}-n-3}{\left(n+1\right)\left(n+2\right)}\)