%I #4 Dec 05 2013 19:56:21
%S 1,49,144,1444,11449,1119364,36144144,251444449,991494144,4914991449,
%T 149991994944,149991994944,98191114994449,118194491449441,
%U 1991164114941444,9141411499911441,119499194999141136
%N Smallest square which is the concatenation of n nonzero squares.
%e a(4) = 1444 is the concatenation of 1,4,4 and 4.
%e a(5)=11449 and is not 10404 as zeros are not allowed.
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Sep 08 2003
%E More terms from _David Wasserman_, May 12 2005