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A183367 Number of nX5 binary arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors.

%I A183367 #7 Jul 22 2025 08:52:17
%S A183367 4,21,108,548,3102,17101,95674,543837,3094889,17654882,100922299,
%T A183367 576885277,3298560872,18868606128,107935859047,617459322870,
%U A183367 3532519181939,20210076149240,115625671366613,661524633792529
%N A183367 Number of nX5 binary arrays with no element equal to the sum mod 3 of its horizontal and vertical neighbors.
%C A183367 Column 5 of A183368
%H A183367 R. H. Hardin, <a href="/A183367/b183367.txt">Table of n, a(n) for n = 1..200</a>
%e A183367 Some solutions for 7X5
%e A183367 ..0..1..1..0..1....0..1..0..1..1....1..1..1..1..0....0..1..0..1..1
%e A183367 ..1..1..1..0..0....0..0..0..1..1....1..0..0..1..0....1..0..0..1..1
%e A183367 ..1..0..1..0..1....1..0..0..0..0....1..0..0..1..1....0..0..0..1..0
%e A183367 ..1..1..1..0..0....0..0..1..1..0....1..1..1..0..1....0..1..1..1..0
%e A183367 ..0..0..0..0..0....0..1..1..1..0....0..0..1..1..1....1..1..0..0..1
%e A183367 ..0..0..1..1..1....1..1..0..1..1....1..0..0..0..0....1..1..0..0..0
%e A183367 ..1..0..1..1..1....1..1..1..1..1....0..0..1..0..1....1..1..0..1..0
%K A183367 nonn
%O A183367 1,1
%A A183367 _R. H. Hardin_ Jan 04 2011