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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A266044 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any vertical or antidiagonal neighbor equal to 4-1. 1
8, 104, 2408, 74416, 2603736, 97230000, 3787995368, 152165487408, 6256996794664, 262070255471888, 11141539251200152, 479536056600705392, 20854033903834109000, 914926763605653165712, 40446653776796028311816 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A266042.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..26

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A266042.

Sequence in context: A112121 A141383 A034300 * A266040 A146346 A285745

Adjacent sequences:  A266041 A266042 A266043 * A266045 A266046 A266047

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2015

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 December 7 17:04 EST 2021. Contains 349581 sequences. (Running on oeis4.)