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%I #6 Dec 18 2015 18:18:00
%S 2,16,211,7675,728935,159327093,90497940567,125050630010443,
%T 420541855354109634,3548467633453651525361,73505549006944543732634211,
%U 3751209136697289848938709033475
%N Number of n X n 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically
%C Diagonal of A206871
%e Some solutions for n=4
%e ..1..0..0..1....0..1..1..0....1..1..0..0....0..0..1..0....0..1..0..0
%e ..1..1..0..0....1..1..0..0....0..1..1..1....0..0..1..0....1..0..1..1
%e ..1..0..1..0....0..1..0..0....0..1..0..1....1..1..0..0....1..0..0..1
%e ..1..0..0..1....0..1..1..0....1..1..0..1....1..1..0..0....1..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 13 2012
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