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%I #7 Dec 18 2015 18:18:02
%S 2,16,126,2601,139605,17098225,4412968520,2580469555456,
%T 3485691022698248,10640054910525548209,72722981173167013234455,
%U 1123008691175260414001447481,39309117808240836879763740048294
%N Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically
%C Diagonal of A208078
%H R. H. Hardin, <a href="/A208073/b208073.txt">Table of n, a(n) for n = 1..22</a>
%e Some solutions for n=4
%e ..1..0..1..0....1..0..1..0....0..1..0..0....1..0..1..0....1..0..1..1
%e ..1..0..1..1....1..1..0..1....0..1..1..0....0..1..0..0....0..1..1..1
%e ..0..1..0..1....0..1..1..1....1..1..1..1....1..1..1..1....0..1..1..1
%e ..1..1..1..0....1..1..1..1....1..0..1..1....1..1..1..1....1..0..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 23 2012
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