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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A220047 Number of 4Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 4Xn array 1
35, 181, 927, 8337, 53266, 313386, 1746346, 9367123, 48895966, 246045686, 1193350361, 5576247662, 25174878509, 110159988971, 468565872713, 1941667776148, 7851280414436, 31016460919525, 119827415529921 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A220044

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..132

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A033851 A219825 A194716 * A101954 A220201 A005937

Adjacent sequences:  A220044 A220045 A220046 * A220048 A220049 A220050

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 January 18 01:36 EST 2019. Contains 319260 sequences. (Running on oeis4.)