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!)
A219828 T(n,k)=Number of nXk 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 columns, 0..3 nXk array 13
4, 4, 10, 10, 13, 20, 20, 38, 60, 35, 35, 87, 394, 193, 56, 56, 176, 2106, 2673, 514, 84, 84, 370, 9920, 29403, 16137, 1231, 120, 120, 721, 45471, 278027, 372346, 84635, 2748, 165, 165, 1374, 186016, 2563318, 7468429, 4032736, 413442, 5802, 220, 220, 2533 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

...4.....4......10........20.........35.........56.........84.........120

..10....13......38........87........176........370........721........1374

..20....60.....394......2106.......9920......45471.....186016......724385

..35...193....2673.....29403.....278027....2563318...20765879...161504901

..56...514...16137....372346....7468429..142482220.2362961573.37398063014

..84..1231...84635...4032736..170199321.6596370468

.120..2748..413442..40480756.3570274220

.165..5802.1912366.386360710

.220.11665.8425696

.286.22432

.364

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..71

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Column 1 is A000292(n+1)

Column 2 is A219367

Row 1 is A000292 for n>1

Sequence in context: A196051 A140234 A220044 * A219714 A167132 A168326

Adjacent sequences:  A219825 A219826 A219827 * A219829 A219830 A219831

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Nov 28 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 August 17 02:36 EDT 2022. Contains 356180 sequences. (Running on oeis4.)