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A221339 Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2 1
0, 85, 1828, 49197, 1160820, 27492106, 645919942, 15174148882, 356331648780, 8367682180712, 196493019336142, 4614084810633380, 108347618798888098, 2544188148240114963, 59741469540161126266, 1402814427562259789640 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A221341

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..17

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A212474 A020310 A163692 * A262062 A220736 A157110

Adjacent sequences:  A221336 A221337 A221338 * A221340 A221341 A221342

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 11 2013

STATUS

approved

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Last modified July 17 18:47 EDT 2019. Contains 325109 sequences. (Running on oeis4.)