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Number of nX6 binary arrays without the pattern 0 0 1 1 diagonally, vertically or horizontally
1

%I #5 Mar 31 2012 12:36:14

%S 52,2704,140608,4597967,151889331,4708773306,139543984265,

%T 4101554902927,118889716429242,3425594682105277,98397912139545475,

%U 2819403207915017394,80693441112166000473,2307804705252673221664,65972623009915917276895

%N Number of nX6 binary arrays without the pattern 0 0 1 1 diagonally, vertically or horizontally

%C Column 6 of A189161

%H R. H. Hardin, <a href="/A189158/b189158.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 4X6

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 17 2011