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A221386 Number of nX6 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no 2-loops and with no occupancy greater than 2 1
0, 190, 20689, 2204556, 229338911, 23796035743, 2468313810280, 256018996534929, 26554240706509311, 2754164301212641518, 285655522885766048508, 29627412820919433306924, 3072868482711331930833327 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A221388

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A263523 A133241 A229903 * A217225 A207211 A207205

Adjacent sequences:  A221383 A221384 A221385 * A221387 A221388 A221389

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 14 2013

STATUS

approved

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Last modified January 17 11:49 EST 2022. Contains 350394 sequences. (Running on oeis4.)