IMO LL 1992
Posted: Fri Jun 01, 2012 11:38 pm
A sequence of positive integers $\left \{ a_{n} \right \}$ is defined as follows:
$ a_{n}=\left [ n+\sqrt{n}+\frac{1}{2} \right ] $
Find the positive integers that occur in this series.
$ a_{n}=\left [ n+\sqrt{n}+\frac{1}{2} \right ] $
Find the positive integers that occur in this series.