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%I #7 Dec 18 2015 18:18:01
%S 2,16,90,441,3915,42025,292600,1982464,21925800,268730449,2281109103,
%T 19215781641,242188032450,3266593546384,32361595709850,
%U 320442399819025,4434278073813775,64468102969055809,723471023371037040
%N Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 0 1 vertically
%C Diagonal of A207599
%H R. H. Hardin, <a href="/A207595/b207595.txt">Table of n, a(n) for n = 1..64</a>
%e Some solutions for n=4
%e ..1..1..1..1....1..0..0..1....1..1..0..1....1..0..0..1....1..0..1..1
%e ..1..1..1..0....0..1..1..0....1..0..1..1....1..0..1..1....0..0..1..1
%e ..1..1..1..0....0..1..1..0....0..0..1..1....0..0..1..1....0..0..1..1
%e ..1..1..0..0....0..1..1..0....0..0..1..1....0..0..1..1....0..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 19 2012
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