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A221254 Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

%I A221254 #6 Jun 02 2025 08:13:22
%S A221254 32,14112,7356420,4085800416,2294073688498,1286684357154700,
%T A221254 720107530988047980,402418492897385719539,224687866990231144007434,
%U A221254 125391176411370052357764435,69957473447300728012460144928
%N A221254 Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
%C A221254 Column 7 of A221255
%H A221254 R. H. Hardin, <a href="/A221254/b221254.txt">Table of n, a(n) for n = 1..12</a>
%e A221254 Some solutions for n=3
%e A221254 ..0..1..2..2..2..2..0....0..1..2..2..2..1..0....0..1..2..2..1..1..2
%e A221254 ..0..2..1..2..0..1..0....0..2..1..0..1..2..2....0..1..2..2..1..2..0
%e A221254 ..0..0..1..0..2..2..1....0..0..1..2..0..2..0....0..1..0..1..1..1..0
%K A221254 nonn
%O A221254 1,1
%A A221254 _R. H. Hardin_ Jan 06 2013