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A221163
Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor.
1
8, 352, 14704, 609961, 25266305, 1046229704, 43318295565, 1793512771275, 74256503785519, 3074423327838949, 127289505511741394, 5270131676800319948, 218197773791764622997, 9033980715508142596386, 374031347287341441297064
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OFFSET
1,1
COMMENTS
Column 3 of
A221165
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..16
EXAMPLE
Some solutions for n=3
..3..0..0....1..0..3....1..2..0....1..2..0....1..3..0....2..1..0....1..0..1
..0..1..2....1..0..0....1..0..2....0..1..2....0..0..0....1..2..2....1..0..2
..3..0..0....3..0..1....0..2..1....3..0..0....2..0..3....0..1..0....4..0..0
CROSSREFS
Sequence in context:
A193504
A158363
A221044
*
A385649
A000436
A015507
Adjacent sequences:
A221160
A221161
A221162
*
A221164
A221165
A221166
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Jan 03 2013
STATUS
approved
