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A183309 Half the number of nX8 binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.

%I A183309 #7 Jul 22 2025 08:48:19
%S A183309 13,35,452,5700,94217,1447110,22504107,348871589,5406312318,
%T A183309 83828453334,1300167830235,20168484726903,312884691407215,
%U A183309 4853992391306949,75303212625271575,1168225180318165057,18123347504407854750
%N A183309 Half the number of nX8 binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.
%C A183309 Column 8 of A183312
%H A183309 R. H. Hardin, <a href="/A183309/b183309.txt">Table of n, a(n) for n = 1..200</a>
%e A183309 Some solutions with a(1,1)=0 for 8X4
%e A183309 ..0..1..0..0....0..0..1..0....0..1..1..0....0..0..1..1....0..1..1..0
%e A183309 ..1..0..1..1....1..1..0..1....1..0..0..1....1..1..0..0....1..0..0..1
%e A183309 ..1..0..1..0....0..0..0..1....0..0..1..0....0..0..1..1....0..1..0..1
%e A183309 ..0..1..0..1....1..1..1..0....1..1..0..1....1..1..0..0....1..0..1..0
%e A183309 ..1..0..1..0....0..0..1..0....0..1..1..0....0..0..1..1....1..0..0..1
%e A183309 ..1..0..0..1....1..0..0..1....1..0..1..0....1..1..0..0....0..1..1..0
%e A183309 ..0..1..0..0....0..1..1..0....0..1..0..1....0..1..0..1....1..1..0..1
%e A183309 ..1..0..1..1....1..0..0..1....1..0..1..0....0..1..0..1....0..0..1..0
%K A183309 nonn
%O A183309 1,1
%A A183309 _R. H. Hardin_ Jan 03 2011