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A221249 Number of 5Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor.

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%I A221249 #5 Jul 23 2025 01:47:33
%S A221249 0,3025,441720,367565584,142283547000,71306050492681,
%T A221249 31835526389622592,14864426276052147876
%N A221249 Number of 5Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor.
%C A221249 Row 5 of A221245
%e A221249 Some solutions for n=3
%e A221249 ..0..0..2....0..0..1....0..0..0....0..0..1....0..0..2....0..0..1....0..1..0
%e A221249 ..0..4..0....0..6..0....1..3..0....0..3..2....0..4..0....2..2..0....0..4..2
%e A221249 ..2..0..0....1..2..0....2..4..0....1..2..0....0..2..1....0..4..0....0..2..1
%e A221249 ..1..2..0....0..1..1....0..2..1....1..1..0....0..2..0....2..2..0....0..1..1
%e A221249 ..0..4..0....2..1..0....1..1..0....0..4..0....2..2..0....0..2..0....1..2..0
%K A221249 nonn
%O A221249 1,2
%A A221249 _R. H. Hardin_ Jan 06 2013

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