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%I #7 Dec 18 2015 18:18:02
%S 2,16,102,1377,26845,955073,56728924,5753550295,985606824420,
%T 287995609933240,142779868614005475,120212913507245137971,
%U 171965976593899860842629,417924073201539457547295084
%N Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically
%C Diagonal of A208028
%H R. H. Hardin, <a href="/A208022/b208022.txt">Table of n, a(n) for n = 1..20</a>
%e Some solutions for n=4
%e ..1..0..1..1....0..1..1..0....0..1..1..0....1..0..1..1....1..0..1..0
%e ..1..0..1..0....1..1..0..0....1..0..1..0....1..0..1..0....1..0..1..1
%e ..1..1..0..0....1..1..0..1....1..0..1..1....1..1..0..0....1..1..1..1
%e ..1..1..0..1....1..1..1..1....0..1..0..1....0..1..0..1....1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 22 2012
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