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A189908 Number of 6Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

%I A189908 #7 Jul 22 2025 11:56:28
%S A189908 52,2704,140608,3810503,101895401,2719427244,73093919926,
%T A189908 1951128590287,51589584277346,1358147318157857,35658646898466208,
%U A189908 933963332609935010,24435853969347309728,638718834034880161561,16686274811151524544035
%N A189908 Number of 6Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.
%C A189908 Row 6 of A189905
%H A189908 R. H. Hardin, <a href="/A189908/b189908.txt">Table of n, a(n) for n = 1..104</a>
%e A189908 Some solutions for 6X4
%e A189908 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
%e A189908 ..1..0..1..1....1..0..1..0....0..1..1..1....0..1..1..0....1..1..0..0
%e A189908 ..0..1..1..1....1..1..0..0....1..0..1..0....0..0..0..0....0..0..0..1
%e A189908 ..1..0..0..0....0..0..1..0....0..0..0..0....0..1..1..1....0..1..0..0
%e A189908 ..1..0..1..1....0..0..0..1....0..0..1..0....0..1..0..0....0..1..0..0
%e A189908 ..0..1..0..0....0..1..1..0....1..0..0..0....0..1..1..0....1..0..0..1
%K A189908 nonn
%O A189908 1,1
%A A189908 _R. H. Hardin_ May 01 2011