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A221301
Number of nX6 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, with no occupancy greater than 2
0
99, 53291, 30470039, 17788952657, 10441043545431, 6137910765383119, 3609497709468161601
OFFSET
1,1
COMMENTS
Column 6 of A221303
EXAMPLE
Some solutions for n=3
..0..1..2..0..2..0....0..1..2..0..2..1....0..1..2..0..2..1....0..1..1..2..1..0
..0..1..1..2..1..2....0..1..1..2..0..2....0..2..1..2..1..2....0..1..0..2..0..2
..0..2..2..0..0..2....0..2..2..1..1..0....0..1..2..0..0..1....0..2..2..2..2..0
CROSSREFS
Sequence in context: A233227 A132607 A221326 * A233144 A233236 A233110
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2013
STATUS
approved