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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A183475 Number of n X n 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors 0
1, 15, 117, 4015, 706473, 116198719, 84056287173 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A183483

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for 4X4

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

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

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

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

CROSSREFS

Sequence in context: A126510 A328725 A331211 * A253804 A161476 A162321

Adjacent sequences:  A183472 A183473 A183474 * A183476 A183477 A183478

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 05 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 November 23 21:51 EST 2020. Contains 338603 sequences. (Running on oeis4.)