Let $a_{n+1}= 2 a_{n}+1 ({n}=0, 1, 2,\dots)$ and $a_{0}=0$. Then $a_{10}$ nearest to.
Given that, $a_{n+1} = 2a_{n}+1; n=0,1,2,3, \dots , a_{0} = 0$
put the various values of $n$ in equation $(1)$ and observe the pattern.