%I #7 Dec 18 2015 18:18:02
%S 2,16,90,625,7315,130321,1432600,17850625,339961440,8208541201,
%T 137250396283,2528484794641,64191779662920,1915940360359936,
%U 43397063924977512,1065586805357114881,33367357471586657167
%N Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically
%C Diagonal of A208118
%H R. H. Hardin, <a href="/A208113/b208113.txt">Table of n, a(n) for n = 1..38</a>
%e Some solutions for n=4
%e ..1..1..0..0....0..1..1..1....0..1..1..1....1..1..0..1....0..1..1..0
%e ..1..1..1..0....0..1..1..1....1..0..0..1....1..0..1..1....1..0..1..1
%e ..1..1..0..0....0..1..1..1....0..1..1..1....1..0..0..1....0..1..1..0
%e ..1..1..0..0....0..1..1..1....1..0..0..1....0..0..1..1....1..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 23 2012
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