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A221326 Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

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%I A221326 #6 Jun 02 2025 08:16:12
%S A221326 99,46211,22181855,10794156688,5264460642473,2568131772343102,
%T A221326 1252783082725664892,611119758365760669838,298107197445873504485520,
%U A221326 145417480551629396888700687,70934889022803306796027176575
%N A221326 Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
%C A221326 Column 6 of A221328
%H A221326 R. H. Hardin, <a href="/A221326/b221326.txt">Table of n, a(n) for n = 1..16</a>
%e A221326 Some solutions for n=3
%e A221326 ..0..1..1..1..0..1....0..1..2..2..0..0....0..1..2..0..2..1....0..1..2..1..1..1
%e A221326 ..0..2..2..2..1..0....0..2..1..1..1..2....0..1..2..2..2..0....0..1..1..2..1..0
%e A221326 ..0..1..2..1..1..2....0..1..1..2..1..1....0..2..0..0..1..2....0..2..2..2..0..1
%K A221326 nonn
%O A221326 1,1
%A A221326 _R. H. Hardin_ Jan 11 2013

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