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A221164
Number of nX4 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor.
0
21, 3721, 609961, 98570764, 15891102336, 2560795894232, 412629557874937, 66487213493398322, 10713074573795484751, 1726194193763563798039, 278141019078046262629610, 44816753384266736751510164
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OFFSET
1,1
COMMENTS
Column 4 of
A221165
LINKS
Table of n, a(n) for n=1..12.
EXAMPLE
Some solutions for n=3
..0..2..2..0....0..2..0..1....0..1..4..0....0..2..0..2....0..3..0..3
..0..3..1..0....0..4..1..2....0..2..0..1....0..0..2..1....0..2..2..0
..1..1..2..0....2..0..0..0....2..0..2..0....4..1..0..0....1..0..0..1
CROSSREFS
Sequence in context:
A202980
A221722
A153833
*
A264250
A250064
A200998
Adjacent sequences:
A221161
A221162
A221163
*
A221165
A221166
A221167
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Jan 03 2013
STATUS
approved
