|
%I #4 Mar 31 2012 12:35:40
%S 11732745024,2144953893641078315315520,
%T 3502030404249297872766171625530047385600,
%U 15195407946323194013765595656097788013666363361791048000
%N Number of 4*n X 20 0..1 arrays with row sums 5 and column sums n
%H R. H. Hardin, <a href="/A172581/b172581.txt">Table of n, a(n) for n=1..10</a>
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 06 2010
| 