A203403 - OEIS

%I #5 Mar 31 2012 12:36:56

%S 4374,46746,408432,3858082,35345798,327725888,3024430930,27962750194,

%T 258345914196,2387518651034,22061941665806,203872962398440,

%U 1883944523165954,17409227897045550,160875446788528448

%N Number of (n+2)X6 binary arrays avoiding patterns 000 and 111 in rows and columns

%C Column 4 of A203407

%H R. H. Hardin, <a href="/A203403/b203403.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 01 2012