A172846 - OEIS

%I #4 Mar 31 2012 12:35:41

%S 1,856945,3366607202713755,5184059089729557142445800537,

%T 816183539809026724414261163240882996876580,

%U 5606794155185465322404088275221975704760242518879730852405

%N Number of 5*n X n 0..4 arrays with row sums 4 and column sums 20

%H R. H. Hardin, <a href="/A172846/b172846.txt">Table of n, a(n) for n=1..10</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 06 2010