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%I #4 Jan 06 2013 19:57:41
%S 0,256,418,1612900,78633756,22466712321,2294073688498,399487764096100,
%T 51031822108216122,7730096571419434884,1061888266253693915768,
%U 154122481474602369093121,21681358901642544133423968
%N Number of 5Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2
%C Row 5 of A221255
%H R. H. Hardin, <a href="/A221259/b221259.txt">Table of n, a(n) for n = 1..15</a>
%e Some solutions for n=3
%e ..1..2..0....0..2..1....0..2..0....0..2..1....1..2..0....0..2..1....0..2..2
%e ..0..2..2....0..2..1....1..2..0....1..2..1....1..2..1....0..2..0....0..2..1
%e ..0..2..1....1..2..0....1..2..2....0..2..0....0..2..0....1..2..1....0..2..0
%e ..0..2..0....0..2..0....0..2..0....0..2..1....0..2..1....1..2..1....0..2..2
%e ..1..2..0....2..2..0....0..2..1....0..2..1....1..2..0....0..2..0....0..2..0
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 06 2013
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