%N Smallest power of n containing it in binary representation.
%C a(n) = n^A136510(n).
%C Essentially the same as A094543. [From _R. J. Mathar_, Oct 28 2008]
%e n=='1100' is contained in a(12)=12^A136510(12)=12^3=1728=='11011000000', but not in '10010000'==144=12^2.
%A _Reinhard Zumkeller_, Jan 03 2008