login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A183424 Half the number of n X n 0..2 arrays with no element equal its row sum plus its column sum mod 3 0
1, 9, 256, 62694, 16777215 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A183429

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 4X4

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

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

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

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

CROSSREFS

Sequence in context: A025133 A193129 A183493 * A160073 A157575 A072158

Adjacent sequences:  A183421 A183422 A183423 * A183425 A183426 A183427

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 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 May 21 22:24 EDT 2019. Contains 323467 sequences. (Running on oeis4.)