quinto, desimo y n-esimo termino de ln3, LN9, ln27, ln81, ...
ln3, ln9, ln27, ln81, ...
$$ln3^1,\;\;ln3^2,\;\;ln3^3,\;\;ln3^4,\;\;.....ln3^n$$
The nth term is ln3^n which is the same as n*ln3