A189339 - OEIS

%I #5 Mar 31 2012 12:36:15

%S 28,784,21952,390721,6814820,109746642,1857004061,31177656076,

%T 533269057178,9053472938552,154252966185542,2618674812680579,

%U 44520074517291894,756141322418868556,12851400623635035810

%N Number of nX5 binary arrays without the pattern 1 0 0 1 diagonally, vertically, antidiagonally or horizontally

%C Column 5 of A189343

%H R. H. Hardin, <a href="/A189339/b189339.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 4X5

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 20 2011