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!)
A219720 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 7Xn array 0
120, 1822, 207161, 21036433, 1658836014, 118470103282, 7921920681423 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A219714

LINKS

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

EXAMPLE

Some solutions for n=3

..2..0..0....0..0..0....0..0..0....0..0..0....2..0..0....0..0..0....0..0..0

..0..0..0....0..0..0....0..0..0....0..0..2....0..0..0....0..0..0....0..0..0

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

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

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

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

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

CROSSREFS

Sequence in context: A353404 A353200 A110839 * A346574 A244838 A266343

Adjacent sequences: A219717 A219718 A219719 * A219721 A219722 A219723

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 26 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 February 1 07:16 EST 2023. Contains 359981 sequences. (Running on oeis4.)