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!)
A219932 Number of n X n arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 n X n array 0
4, 23, 368, 21512, 3773045, 2574187888 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A219939
LINKS
EXAMPLE
Some solutions for n=3
..1..0..2....2..0..0....2..0..0....0..0..0....0..1..1....0..0..0....1..1..1
..1..0..0....2..0..2....3..0..0....0..2..0....0..0..0....2..2..0....2..1..1
..1..0..0....3..0..0....3..1..1....0..0..0....3..2..0....3..3..2....2..2..2
CROSSREFS
Sequence in context: A327367 A303652 A130890 * A266919 A219464 A107765
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 01 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 July 17 22:17 EDT 2024. Contains 374377 sequences. (Running on oeis4.)