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A221391 Number of 5Xn 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, 0, 40, 15181, 1829388, 229338911, 25415184702, 2810579281184, 304942133485122, 32982395377267648, 3554547354934938568, 382579389710396900732, 41139562348362648154196, 4421834681716006875081205 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row 5 of A221388

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

CROSSREFS

Sequence in context: A309553 A123381 A210347 * A279578 A159680 A240628

Adjacent sequences:  A221388 A221389 A221390 * A221392 A221393 A221394

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 14 2013

STATUS

approved

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Last modified October 27 01:36 EDT 2021. Contains 348270 sequences. (Running on oeis4.)