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A221261 Number of 7Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2 0

%I

%S 0,4096,5822,1250753956,278802326676,1080371161000000,

%T 720107530988047980,1273696206975009956961,1220346471047321694829098

%N Number of 7Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2

%C Row 7 of A221255

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 06 2013

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Last modified October 22 01:46 EDT 2020. Contains 337948 sequences. (Running on oeis4.)