%I #5 Mar 31 2012 12:35:59
%S 1,1,1,2,2,5,16,68,244,1106,4041,15802,60716,234319,885466,3369738,
%T 12612488,47251424,174691216,644760884,2353213266,8557977690,
%U 30825999521,110546795278,393117952349,1390864413489,4884724958228,17059662985333
%N Number of strings of numbers x(i=1..n) in 0..4 with sum i^2*x(i)^3 equal to n^2*64
%C Column 4 of A184318
%H R. H. Hardin, <a href="/A184313/b184313.txt">Table of n, a(n) for n = 1..31</a>
%e All solutions for n=5
%e ..0....0
%e ..0....0
%e ..0....4
%e ..0....4
%e ..4....0
%K nonn
%O 1,4
%A _R. H. Hardin_ Jan 10 2011