%I #2 Oct 02 2013 15:47:25
%S 10,115,111,1111,11111,1111114,1111111,110111111,1111111141,
%T 11101111111,11111111111,1111111111101,10111111111111,111111011111111,
%U 1111111111101111,10111111111111111,11111111111111111
%N Smallest semiprime containing exactly n 1's.
%e a(2)=115 because 115 is the smallest semiprime containing exactly two 1's.
%K base,nonn
%O 1,1
%A _Shyam Sunder Gupta_, Apr 24 2005
|