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%I #4 Jan 06 2013 16:30:48
%S 0,64,1056,45369,1337130,44315649,1404725868,45215769600,
%T 1447056039456,46405605611556,1487038748557464,47664362071029636,
%U 1527638149928473128,48962472488029102500,1569278944309473869112,50296658362620611720256
%N Number of 3Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor
%C Row 3 of A221245
%H R. H. Hardin, <a href="/A221247/b221247.txt">Table of n, a(n) for n = 1..24</a>
%e Some solutions for n=3
%e ..0..3..1....0..0..0....0..0..1....0..1..0....0..1..0....0..1..2....2..4..0
%e ..0..3..1....0..4..3....2..6..0....1..3..1....2..3..0....0..5..0....0..0..0
%e ..1..0..0....0..2..0....0..0..0....0..2..1....0..2..1....0..0..1....1..2..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 06 2013
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