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A221302
Number of n X 7 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, with no occupancy greater than 2.
0
239, 388741, 668597561, 1170461488239, 2055191230733819, 3609497709468161601
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A221303.
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for n=3
..0..1..1..1..1..2..1....0..1..1..2..2..1..2....0..1..1..2..2..2..1
..0..1..2..0..1..1..1....0..1..1..0..0..2..1....0..1..1..0..0..0..0
..0..1..1..2..2..0..2....0..1..2..2..1..1..0....0..1..2..1..2..2..2
CROSSREFS
Cf. A221303.
Sequence in context: A223974 A208681 A221327 * A072173 A282230 A015161
Adjacent sequences: A221299 A221300 A221301 * A221303 A221304 A221305
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2013
STATUS
approved

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Last modified October 4 16:18 EDT 2024. Contains 376519 sequences.
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