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!)
A207263 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically 1
2, 16, 82, 611, 5904, 45520, 467686, 4556171, 48655983, 567847595, 6351729691, 80023297510, 1005050679531, 12834603243934, 174354454607454, 2353308940308585, 32870079608035300, 470039857440029540 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207269

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..23

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A052346 A207482 A207880 * A207757 A283951 A207340

Adjacent sequences:  A207260 A207261 A207262 * A207264 A207265 A207266

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 16 2012

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 January 19 20:22 EST 2022. Contains 350466 sequences. (Running on oeis4.)