%I #4 Jan 06 2013 19:54:22

%S 32,14112,7356420,4085800416,2294073688498,1286684357154700,

%T 720107530988047980,402418492897385719539,224687866990231144007434,

%U 125391176411370052357764435,69957473447300728012460144928

%N Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2

%C Column 7 of A221255

%H R. H. Hardin, <a href="/A221254/b221254.txt">Table of n, a(n) for n = 1..12</a>

%e Some solutions for n=3

%e ..0..1..2..2..2..2..0....0..1..2..2..2..1..0....0..1..2..2..1..1..2

%e ..0..2..1..2..0..1..0....0..2..1..0..1..2..2....0..1..2..2..1..2..0

%e ..0..0..1..0..2..2..1....0..0..1..2..0..2..0....0..1..0..1..1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 06 2013