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!)
A220009 Number of nX7 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX7 array 0
84, 263, 17525, 983187, 44269383, 1708594026 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A220010

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A096383 A220043 A137210 * A160321 A249969 A306516

Adjacent sequences:  A220006 A220007 A220008 * A220010 A220011 A220012

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 03 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 September 18 13:54 EDT 2021. Contains 347527 sequences. (Running on oeis4.)