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A207853 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.

%I A207853 #9 Jul 22 2025 20:53:14
%S A207853 2,16,102,1369,44121,2934369,298294290,56804048896,22612514662790,
%T A207853 17183745725983369,23510773704878179041,60748271137827940655041,
%U A207853 304386527035085508883292036,2891218911926091087027201634564
%N A207853 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically.
%C A207853 Diagonal of A207858
%H A207853 R. H. Hardin, <a href="/A207853/b207853.txt">Table of n, a(n) for n = 1..15</a>
%e A207853 Some solutions for n=4
%e A207853 ..1..0..0..1....1..0..0..1....1..0..1..1....1..0..1..1....0..0..1..1
%e A207853 ..0..0..1..1....1..1..1..1....0..0..1..1....1..1..0..1....1..1..1..0
%e A207853 ..0..0..1..1....1..1..1..1....0..0..1..1....1..1..0..0....1..1..1..0
%e A207853 ..0..0..1..1....1..0..1..1....1..0..0..1....0..1..1..0....1..1..0..1
%K A207853 nonn
%O A207853 1,1
%A A207853 _R. H. Hardin_ Feb 21 2012