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A221747 Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, without move-in move-out straight through or left turns 1
0, 98, 1050, 32129, 617713, 14217642, 302341148, 6643779685, 143927012415, 3136786802690, 68184190005266, 1483776528178631, 32273118367892713, 702107961743369426, 15273104465846955237, 332252019016169780082 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A221749

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..55

EXAMPLE

Some solutions for n=3

..0..3..0....0..1..1....0..3..0....0..0..1....1..1..0....0..3..1....1..1..0

..0..2..1....0..1..2....1..1..3....2..1..1....1..1..1....2..1..1....0..2..3

..1..2..0....1..2..1....0..0..1....1..3..0....0..3..1....0..1..0....0..1..1

CROSSREFS

Sequence in context: A088736 A292552 A233373 * A190636 A019563 A285045

Adjacent sequences:  A221744 A221745 A221746 * A221748 A221749 A221750

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 24 2013

STATUS

approved

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Last modified September 27 07:28 EDT 2021. Contains 347673 sequences. (Running on oeis4.)