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%I #5 Jan 08 2013 06:25:52
%S 0,16,0,596,0,24366,0,1001855,0,41171316,0,1691327788,0,69470653170,0,
%T 2853337539621,0,117191717993760,0,4813242705044572,0,
%U 197686734633818238,0,8119268451165592095,0
%N Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with every occupancy equal to zero or two
%C Column 3 of A221273
%e Some solutions for n=4
%e ..0..2..0....2..2..0....0..2..0....0..0..2....2..0..2....0..2..2....2..0..0
%e ..0..2..0....2..0..0....2..2..0....2..2..2....2..2..0....2..2..0....2..0..2
%e ..2..0..0....2..0..0....0..2..2....0..2..2....2..0..0....0..2..0....2..2..0
%e ..2..2..2....0..2..2....0..2..0....0..0..0....0..2..0....0..2..0....0..0..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 08 2013
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