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A221204 Number of 5Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, with no occupancy greater than 2 0

%I

%S 0,1681,976,20277009,433687328,420771471561,29037336149952,

%T 10986555692499984

%N Number of 5Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, with no occupancy greater than 2

%C Row 5 of A221200

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 04 2013

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Last modified October 17 06:07 EDT 2021. Contains 348048 sequences. (Running on oeis4.)