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%I #6 Dec 18 2015 18:17:58
%S 1,3,84,8837,5660631,22078482448,449985495293440,48224646798077538850
%N Number of n X n 0..2 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors
%C Diagonal of A203460
%e Some solutions for n=5
%e ..2..2..2..0..0....2..2..1..1..0....0..2..2..2..2....1..1..0..0..0
%e ..2..0..2..1..0....2..2..1..1..1....0..2..2..2..2....1..2..2..1..0
%e ..2..1..2..1..0....0..1..2..2..1....0..1..0..0..0....2..2..2..1..0
%e ..2..1..2..2..0....2..2..2..2..1....1..1..2..2..0....2..0..0..2..2
%e ..2..2..2..2..0....2..2..0..0..0....1..1..2..2..0....2..2..2..2..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 02 2012
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