%I #7 Dec 18 2015 18:18:01
%S 2,16,84,828,11950,195160,6513576,364308938,15284596082,2700018736020,
%T 787454317079753,72216754252055376,73270546375550142283,
%U 119728540088330705652453,22114539991379386419299095
%N Number of n X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 0 vertically
%C Diagonal of A207774
%H R. H. Hardin, <a href="/A207768/b207768.txt">Table of n, a(n) for n = 1..18</a>
%e Some solutions for n=4
%e ..1..1..0..0....1..1..0..1....0..1..1..0....1..0..0..1....1..1..0..0
%e ..0..1..0..1....1..1..0..1....1..1..0..0....1..0..1..1....1..0..1..0
%e ..1..1..0..1....1..1..0..1....1..0..1..0....0..0..1..1....1..0..1..0
%e ..1..1..0..0....0..1..0..1....0..1..1..0....0..0..1..0....1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 20 2012
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