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!)
A220380 Majority value maps: number of n X n binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal and antidiagonal neighbors in a random 0..1 n X n array 0
1, 7, 136, 7462, 1829169, 1509240923, 4230913273170 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A220386

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A210028 A243684 A260535 * A051504 A058881 A100520

Adjacent sequences:  A220377 A220378 A220379 * A220381 A220382 A220383

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 13 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 October 26 18:30 EDT 2021. Contains 348268 sequences. (Running on oeis4.)