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%I #3 Jan 11 2013 05:39:04
%S 1,114243,162555929,374176705928,676612123702617,1252783082725664892,
%T 2242286238164144345340,3997304037038003330432187
%N Number of 7Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2
%C Row 7 of A221328
%e Some solutions for n=3
%e ..0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0
%e ..1..2..0....1..2..0....1..2..0....1..2..0....1..2..0....1..2..0....1..2..0
%e ..1..2..0....2..1..1....2..1..0....1..2..0....2..1..1....2..1..1....1..2..1
%e ..2..2..0....0..2..1....2..2..2....1..2..2....0..2..1....1..1..1....2..1..0
%e ..2..1..0....0..2..1....0..1..2....0..1..2....2..0..0....2..0..1....0..2..0
%e ..2..2..0....1..1..2....0..1..0....0..1..1....2..1..2....1..1..1....1..2..2
%e ..1..2..0....1..0..2....1..2..1....1..1..2....2..0..1....2..2..0....0..1..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Jan 11 2013