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%I #5 May 20 2021 14:29:50
%S 32,57121,58132316,75512292025,86907967843320,106295637843093924
%N Number of n X 7 arrays of occupancy after each element moves to some horizontal or vertical neighbor, with no occupancy greater than 2.
%C Column 7 of A221139.
%e Some solutions for n=3
%e ..0..1..2..2..1..1..1....0..1..2..2..1..1..0....0..1..1..2..1..1..0
%e ..0..1..2..2..1..2..1....0..1..1..2..2..2..0....0..1..1..2..2..1..0
%e ..0..1..1..0..0..2..0....0..1..2..1..0..2..0....0..1..2..2..2..1..0
%Y Cf. A221139.
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 02 2013
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