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A221340 Number of nX4 arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2 0
0, 758, 49197, 4072557, 290087988, 20842593371, 1491982399481, 107036118955682 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A221341

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A101833 A261858 A068683 * A290738 A104336 A157830

Adjacent sequences:  A221337 A221338 A221339 * A221341 A221342 A221343

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 11 2013

STATUS

approved

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Last modified August 14 02:47 EDT 2022. Contains 356109 sequences. (Running on oeis4.)