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A189775 Number of nX5 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally 1

%I #5 Mar 31 2012 12:36:16

%S 28,784,21952,418550,7767740,136521398,2475199422,44835555921,

%T 819898395901,14951509967629,272888201632045,4974385897878190,

%U 90702815452479941,1653551877098790941,30149461492149942101

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

%C Column 5 of A189779

%H R. H. Hardin, <a href="/A189775/b189775.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for 6X5

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 27 2011

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Last modified April 23 14:15 EDT 2024. Contains 371914 sequences. (Running on oeis4.)