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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A182236 T(n,k)=Number of n X n 0..n+k-2 arrays with new values 0 upwards introduced in row major order and every value unique in its row and column 0
1, 1, 1, 1, 3, 2, 1, 4, 44, 24, 1, 4, 230, 4920, 1344, 1, 4, 464, 190452, 6050304, 1128960, 1, 4, 569, 1760316 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Table starts

.......1.......1......1.......1...1.1.1

.......1.......3......4.......4...4.4

.......2......44....230.....464.569

......24....4920.190452.1760316

....1344.6050304

.1128960

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

Some solutions for n=4 k=4

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

..1..2..0..4....1..0..3..4....2..3..1..4....1..0..3..4....2..3..1..0

..4..5..1..0....4..2..5..0....4..0..5..6....2..3..1..5....4..5..3..2

..2..6..3..5....5..3..4..6....5..4..0..1....6..2..4..0....1..6..4..5

CROSSREFS

Sequence in context: A156699 A245183 A262347 * A077819 A030313 A300219

Adjacent sequences:  A182233 A182234 A182235 * A182237 A182238 A182239

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Apr 20 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 17 12:45 EDT 2019. Contains 327131 sequences. (Running on oeis4.)