A181034 - OEIS

%I #3 Mar 31 2012 12:35:49

%S 1,8,99,2999,200798,30584687,10496827403,8147000813446,

%T 14279081380626859,56548869471250924613,505895767712482884973116,

%U 10224865987802162338842130221,466867871514396686081152537710131

%N Number of nX(n+3) binary matrices with no initial bit string in any row or column divisible by 4

%C Superdiagonal 3 of A181031

%H R. H. Hardin, <a href="/A181034/b181034.txt">Table of n, a(n) for n=1..22</a>

%e Some solutions for 4X7

%e ..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....1..0..1..0..1..0..1....1..0..1..0..1..0..1

%e ..1..1..0..1..0..1..0....1..1..0..1..0..1..0....1..1..0..1..0..1..0

%e ..1..0..1..0..1..0..1....1..0..1..0..1..1..1....1..0..1..1..1..0..1

%K nonn

%O 1,2

%A _R. H. Hardin_ Sep 30 2010