login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A220197 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 n X n array 0
4, 10, 238, 6855, 527350, 154837661 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A220204

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=3

..0..0..0....0..0..0....0..0..0....0..0..0....1..0..0....3..0..0....0..0..0

..2..0..0....1..0..0....2..0..0....1..0..0....2..1..0....3..1..0....1..0..0

..3..3..1....3..1..0....2..1..0....3..3..2....2..2..1....3..3..1....1..1..3

CROSSREFS

Sequence in context: A003086 A102958 A321795 * A299880 A085649 A152396

Adjacent sequences:  A220194 A220195 A220196 * A220198 A220199 A220200

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 07 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 22 05:29 EDT 2019. Contains 328315 sequences. (Running on oeis4.)