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A207917 Number of nX7 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.

%I A207917 #7 Jul 22 2025 20:59:42
%S A207917 28,784,4344,46800,366330,3327954,28188778,247024548,2129817756,
%T A207917 18503218016,160144863388,1388528077986,12029107363320,
%U A207917 104255340840714,903395668109660,7828846025215230,67841580292509632,587899815684673466
%N A207917 Number of nX7 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.
%C A207917 Column 7 of A207918
%H A207917 R. H. Hardin, <a href="/A207917/b207917.txt">Table of n, a(n) for n = 1..210</a>
%e A207917 Some solutions for n=4
%e A207917 ..0..0..1..1..0..0..1....1..0..0..1..1..1..1....1..0..0..1..0..0..1
%e A207917 ..0..1..0..0..1..0..0....1..1..1..0..0..1..0....1..0..0..1..1..1..0
%e A207917 ..0..1..0..0..1..1..0....1..1..1..0..0..1..0....0..1..0..0..1..1..0
%e A207917 ..1..1..0..0..1..1..0....1..1..1..0..0..1..1....0..1..0..0..1..1..1
%K A207917 nonn
%O A207917 1,1
%A A207917 _R. H. Hardin_ Feb 21 2012