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%I #3 Jan 08 2013 06:13:04
%S 17,1073,71977,5007745,355645325,25512853201,1838393941445,
%T 132717282488753,9588278602742109,692914031177971849
%N Number of nX4 arrays of occupancy after each element stays put or moves to some king-move neighbor, with no occupancy greater than 2
%C Column 4 of A221269
%e Some solutions for n=3
%e ..2..0..2..0....0..2..1..0....0..2..2..0....0..0..0..1....2..1..1..0
%e ..0..2..1..0....0..2..1..2....0..0..2..0....1..2..2..2....1..1..1..0
%e ..2..2..1..0....2..0..0..2....0..2..2..2....2..1..0..1....2..0..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 08 2013
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