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A221928 Number of nX5 arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns 0
28, 20933, 6888458, 2568601026, 938516646422, 344170748565832, 126100252425009531, 46209296640385349436, 16932783333617347990176 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A221929

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=3

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

..0..5..1..0..0....0..2..1..3..1....0..4..1..2..2....0..3..0..3..1

..0..0..1..4..1....0..4..0..0..0....0..1..0..0..0....0..2..2..0..1

CROSSREFS

Sequence in context: A147304 A221897 A280283 * A281324 A159439 A270070

Adjacent sequences:  A221925 A221926 A221927 * A221929 A221930 A221931

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 01 2013

STATUS

approved

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Last modified September 23 12:43 EDT 2021. Contains 347617 sequences. (Running on oeis4.)