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!)
A222485 Number of nX5 0..2 arrays with exactly floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
4, 14, 75, 2373, 20638, 590724, 6010402, 194136760, 2013514580, 65746124890, 684659035488, 22459365175280, 234749172372554, 7700759843895294, 80807651153045664, 2648981891341319485, 27897853106852726172 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A222488

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..52

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A242739 A007282 A222900 * A009347 A231510 A161132

Adjacent sequences:  A222482 A222483 A222484 * A222486 A222487 A222488

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 22 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 February 23 00:28 EST 2020. Contains 332157 sequences. (Running on oeis4.)