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!)
A230924 Number of nX6 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 3 and at least one element with value (x(i,j)-1) mod 3, and upper left element zero 1
0, 22428, 2772906, 1509045552, 635678359988, 270258566366420, 115824906242444524, 49485565220035538028, 21156805616540924557940, 9044496465346856530533020, 3866495604500081195895769776 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A230926

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..117

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A329787 A224648 A237215 * A250441 A204305 A251116

Adjacent sequences:  A230921 A230922 A230923 * A230925 A230926 A230927

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 01 2013

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 September 21 05:55 EDT 2020. Contains 337267 sequences. (Running on oeis4.)