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Number of 6Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally
1

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

%S 52,2704,140608,3810503,101895401,2719427244,73093919926,

%T 1951128590287,51589584277346,1358147318157857,35658646898466208,

%U 933963332609935010,24435853969347309728,638718834034880161561,16686274811151524544035

%N Number of 6Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally

%C Row 6 of A189905

%H R. H. Hardin, <a href="/A189908/b189908.txt">Table of n, a(n) for n = 1..104</a>

%e Some solutions for 6X4

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ May 01 2011