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A221349 Number of nX4 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops 0
0, 148, 12296, 938070, 68449305, 4937698670, 354502871047, 25405114529768, 1819259480725634, 130236648141077671, 9322142390162086274, 667229079763512284278, 47755622252421340025975 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A221351

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A210159 A252770 A035822 * A178083 A128919 A223740

Adjacent sequences:  A221346 A221347 A221348 * A221350 A221351 A221352

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 11 2013

STATUS

approved

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Last modified June 19 00:04 EDT 2021. Contains 345125 sequences. (Running on oeis4.)