login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A280216 Number of nX6 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 0
30, 1072, 20593, 320755, 4245153, 51995541, 607401930, 6826834071, 74866926296, 803333083744, 8481136146360, 88284309868714, 908465381543452, 9254692532815689, 93470995500319234 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A280217.
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..1..1. .0..1..1..2..2..2. .0..1..1..1..2..2. .0..1..2..2..2..2
..0..0..1..1..1..2. .0..1..1..2..2..0. .2..1..1..2..2..0. .0..0..2..2..2..1
..0..0..1..0..0..0. .1..1..1..1..0..0. .2..2..2..2..0..0. .0..0..1..1..1..1
CROSSREFS
Cf. A280217.
Sequence in context: A001821 A027488 A269541 * A075187 A265101 A214820
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 29 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 March 28 11:46 EDT 2024. Contains 371241 sequences. (Running on oeis4.)