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A221772 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out left turns 0
55, 18828, 6916881, 2541024755, 932759231192, 342291992210642, 125598125432396157 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A221773

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=3

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

..0..3..3..1..1....0..3..0..4..0....0..3..1..0..0....0..3..1..3..0

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

CROSSREFS

Sequence in context: A268167 A266031 A267424 * A221123 A231826 A163036

Adjacent sequences:  A221769 A221770 A221771 * A221773 A221774 A221775

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 25 2013

STATUS

approved

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Last modified May 19 05:04 EDT 2022. Contains 353826 sequences. (Running on oeis4.)