%N Smallest palindromic n-th power larger than 1.
%C It is probably still unknown whether there are any palindromic n-th powers with more than one digit, for any n >= 5.
%e a(3) = 343 = 7^3.
%A _Amarnath Murthy_, Jun 18 2001
%E Corrected by and better description from _Dean Hickerson_, Jun 23, 2001