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A221613 Number of 5Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out left turns 0
0, 16, 1522, 184193, 19521328, 2114436826, 229719706276, 25028839210435, 2726511526305974 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 5 of A221609

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A294163 A180504 A178024 * A266156 A054947 A071900

Adjacent sequences:  A221610 A221611 A221612 * A221614 A221615 A221616

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 20 2013

STATUS

approved

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Last modified April 23 04:23 EDT 2021. Contains 343199 sequences. (Running on oeis4.)