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%I #4 Jan 08 2013 06:12:34
%S 7,141,3119,71977,1688295,39832247,941623211,22274020039,526997663309,
%T 12469419844637,295047590702713,6981363653378659,165192014421623009,
%U 3908750400013375947,92488301546612746461,2188444946392166774905
%N Number of nX3 arrays of occupancy after each element stays put or moves to some king-move neighbor, with no occupancy greater than 2
%C Column 3 of A221269
%H R. H. Hardin, <a href="/A221267/b221267.txt">Table of n, a(n) for n = 1..21</a>
%e Some solutions for n=3
%e ..1..1..1....0..1..2....0..0..2....1..0..1....1..1..1....1..2..1....2..2..1
%e ..0..2..2....1..1..1....2..0..2....2..0..2....1..2..0....0..1..0....1..0..1
%e ..0..2..0....0..1..2....1..0..2....1..0..2....2..1..0....1..2..1....0..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 08 2013
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