The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A222695 Number of 6Xn 0..2 arrays with exactly floor(6Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
0, 1120, 32296, 723244, 20259516, 589802909, 18253875506, 587817545724, 19654502530302, 676444220700614, 23808229868262298, 851786780144746749, 30835345886767300972, 1125619132950192066196, 41335747933044787972212 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 6 of A222690
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..1..1....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....1..0..2....0..0..0....0..0..1....0..0..1....0..0..1
..0..0..0....0..1..1....0..0..0....1..0..0....0..2..2....0..0..1....2..0..1
..0..1..2....0..0..1....0..0..0....0..0..1....0..2..1....2..1..1....1..2..2
..2..1..2....0..2..2....0..0..0....0..0..2....0..1..1....1..1..1....1..2..2
..1..1..0....2..2..2....0..0..1....1..2..2....1..1..1....1..2..2....2..2..2
CROSSREFS
Sequence in context: A237689 A032777 A234445 * A032779 A028464 A225995
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 18 18:01 EDT 2024. Contains 373486 sequences. (Running on oeis4.)