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!)
A207482 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically 0
2, 16, 82, 530, 4041, 26980, 268275, 2555724, 30415590, 441509828, 8373148373, 212120269939, 7313507695094, 322966671937819, 18599518847838594, 1383707197762948671, 137553485485585731530, 16701189911469748208243 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207488

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A234004 A053587 A052346 * A207880 A207263 A207757

Adjacent sequences:  A207479 A207480 A207481 * A207483 A207484 A207485

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 27 23:35 EDT 2022. Contains 354903 sequences. (Running on oeis4.)