login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A221614 Number of 6Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out left turns 0
0, 32, 8072, 2764070, 804371949, 240257613761, 72063803799931, 21695654478885490 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A221609

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

CROSSREFS

Sequence in context: A248720 A069052 A334604 * A086752 A248001 A159679

Adjacent sequences:  A221611 A221612 A221613 * A221615 A221616 A221617

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 20 2013

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 10 14:50 EDT 2020. Contains 336381 sequences. (Running on oeis4.)