%I
%S 1,1,1,1,2,2,2,1,5,3,3,2,4,4,6,1,7,8,6,3,18,8,7,2,18,7,24,4,10,21,20,
%T 1,31,13,22,8,27,15,29,3,31,38,30,8,65,20,27,2,50,32,68,7,41,59,61,4,
%U 85,30,46,21,63,40,108,1,72,78,74,13,98,73,59,8,83,55,151,15,92,104,85,3,171
%N Number of strings of numbers x(i=1..4) in 0..n with sum i^2*x(i)^2 equal to n^2*16
%C Row 4 of A184240
%H R. H. Hardin, <a href="/A184242/b184242.txt">Table of n, a(n) for n = 1..200</a>
%e All solutions for n=5
%e ..0....0
%e ..0....0
%e ..4....0
%e ..4....5
%K nonn
%O 1,5
%A _R. H. Hardin_ Jan 10 2011
