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A208159 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.

%I A208159 #9 Jul 22 2025 21:12:11
%S A208159 2,16,102,981,14446,297702,9072707,424153857,29316311612,
%T A208159 3025550427476,473181884230845,111694857841157921,
%U A208159 39694965205591894619,21331992417577197285058,17352141355803100139646251
%N A208159 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 0 vertically.
%C A208159 Diagonal of A208164
%H A208159 R. H. Hardin, <a href="/A208159/b208159.txt">Table of n, a(n) for n = 1..16</a>
%e A208159 Some solutions for n=4
%e A208159 ..0..1..0..0....1..1..1..0....0..1..1..0....0..1..0..0....0..0..1..0
%e A208159 ..0..1..0..0....1..1..0..0....0..0..1..1....0..1..1..0....1..0..0..1
%e A208159 ..0..1..0..0....0..0..1..0....0..1..1..1....0..0..1..0....1..0..0..1
%e A208159 ..0..1..0..0....0..1..1..0....0..1..1..0....0..0..1..0....1..0..0..1
%K A208159 nonn
%O A208159 1,1
%A A208159 _R. H. Hardin_ Feb 24 2012