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!)
A220109 T(n,k)=Number of nXk arrays of the minimum or maximum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 nXk array 3
4, 16, 16, 56, 256, 56, 250, 4020, 4020, 250, 984, 64862, 252520, 64862, 984, 3888, 1029672, 16187862, 16187862, 1029672, 3888, 15798, 16468836, 1028824446, 4160361190, 1028824446, 16468836, 15798, 63092, 262860066, 65676456950 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....4.......16.........56........250........984........3888.....15798.63092

....16......256.......4020......64862....1029672....16468836.262860066

....56.....4020.....252520...16187862.1028824446.65676456950

...250....64862...16187862.4160361190

...984..1029672.1028824446

..3888.16468836

.15798

LINKS

Table of n, a(n) for n=1..31.

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Sequence in context: A223801 A336938 A232516 * A207283 A207479 A207535

Adjacent sequences:  A220106 A220107 A220108 * A220110 A220111 A220112

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Dec 05 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 May 20 16:00 EDT 2022. Contains 353874 sequences. (Running on oeis4.)