login
The OEIS is supported by the many generous donors to the OEIS 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 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A275259 Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-2,1) or (-1,-1) and new values introduced in order 0..2. 0
1, 9, 128, 2564, 126420, 14005180, 3224773976, 1565667773372, 1622686746762908, 3362812964412060544 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A275266.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A275266.

Sequence in context: A073014 A046754 A203425 * A064746 A232950 A184143

Adjacent sequences: A275256 A275257 A275258 * A275260 A275261 A275262

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 21 2016

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 12:40 EST 2022. Contains 358468 sequences. (Running on oeis4.)