%I #3 Mar 31 2012 12:35:49
%S 1,5,41,827,36787,3729091,851302029,439621976195,512615852515459,
%T 1350668111471923517,8039144604242883698707,
%U 108102244692016476122031505,3283958267007000189206675439393,225377046019121585326666765445484971
%N Number of nX(n+2) binary matrices with no initial bit string in any row or column divisible by 4
%C Superdiagonal 2 of A181031
%H R. H. Hardin, <a href="/A181033/b181033.txt">Table of n, a(n) for n=1..22</a>
%e Some solutions for 4X6
%e ..1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..1..1....1..1..1..1..1..1
%e ..1..0..1..0..1..0....1..0..1..0..1..0....1..0..1..0..1..0....1..0..1..0..1..0
%e ..1..1..0..1..0..1....1..1..0..1..0..1....1..1..0..1..0..1....1..1..0..1..0..1
%e ..1..0..1..0..1..0....1..0..1..0..1..1....1..0..1..1..1..0....1..0..1..1..1..1
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 30 2010