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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
0, 1681, 976, 20277009, 433687328, 420771471561, 29037336149952, 10986555692499984
OFFSET
1,2
COMMENTS
Row 5 of A221200
EXAMPLE
Some solutions for n=3
..2..2..0....0..2..0....0..2..1....1..2..1....0..2..1....0..2..0....0..2..0
..1..2..0....1..2..1....1..2..0....1..2..0....0..2..0....2..2..0....2..2..1
..0..2..1....0..2..0....1..2..0....0..2..1....1..2..1....1..2..1....1..2..0
..0..2..0....0..2..1....0..2..0....0..2..1....1..2..0....0..2..1....0..2..0
..0..2..1....2..2..0....1..2..1....0..2..0....0..2..1....0..2..0....1..2..0
CROSSREFS
Sequence in context: A172673 A172768 A172667 * A145292 A228183 A175897
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2013
STATUS
approved