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!)
A196293 Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,1,4,2 for x=0,1,2,3,4 0
1, 9, 58, 2161, 160800, 29726608, 14372583192, 17833080104711 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Every 0 is next to 0 3's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 4's, every 4 is next to 4 2's

Diagonal of A196300

LINKS

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

EXAMPLE

Some solutions for n=4

..0..1..1..0....0..1..1..0....0..0..0..0....0..1..1..0....0..0..1..1

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

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

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

CROSSREFS

Sequence in context: A271271 A055423 A322207 * A196211 A196679 A276450

Adjacent sequences:  A196290 A196291 A196292 * A196294 A196295 A196296

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 30 2011

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 October 29 12:00 EDT 2020. Contains 338066 sequences. (Running on oeis4.)