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!)
A219802 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nXk array 13
4, 4, 4, 10, 4, 10, 20, 10, 13, 20, 35, 21, 71, 26, 35, 56, 39, 283, 255, 57, 56, 84, 68, 959, 1605, 958, 116, 84, 120, 114, 2949, 8779, 9817, 3227, 231, 120, 165, 186, 8533, 43246, 91972, 52704, 10448, 450, 165, 220, 297, 23726, 202771, 794035, 840315, 279458 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
...4....4.....10......20.......35........56........84........120.......165
...4....4.....10......21.......39........68.......114........186.......297
..10...13.....71.....283......959......2949......8533......23726.....63982
..20...26....255....1605.....8779.....43246....202771.....925422...4126107
..35...57....958....9817....91972....794035...6627885...54254802.433569009
..56..116...3227...52704...840315..12642165.186308295.2698382566
..84..231..10448..279458..7667972.204182570
.120..450..33171.1485408.69981764
.165..859.104257.7898483
.220.1604.321192
.286.2928
.364
LINKS
EXAMPLE
Some solutions for n=3 k=4
..1..0..0..0....2..0..0..0....3..0..0..0....3..2..0..0....1..1..1..1
..1..0..0..0....2..0..0..0....3..0..0..0....3..2..0..0....1..1..1..1
..2..2..2..3....3..2..2..2....3..2..2..2....3..3..1..1....3..3..3..3
CROSSREFS
Column 1 and row 1 are A000292 for n>1
Column 2 is A219454
Sequence in context: A256796 A117405 A013601 * A219460 A347433 A220010
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 March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)