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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A223028 Number of nX2 0..2 arrays with exactly floor(nX2/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order 1
0, 6, 16, 58, 136, 352, 768, 1752, 3680, 7904, 16256, 33824, 68736, 140544, 283648, 574336, 1154560, 2324992, 4663296, 9361920, 18753536, 37584896, 75235328, 150640640, 301424640, 603217920, 1206747136, 2414288896, 4829249536 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 2 of A223033

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A032282 A084057 A163302 * A091649 A125628 A078672

Adjacent sequences:  A223025 A223026 A223027 * A223029 A223030 A223031

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 12 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 18 16:14 EDT 2018. Contains 316323 sequences. (Running on oeis4.)