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!)
A264560 T(n,k)=Number of nXk arrays of permutations of 0..n*k-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 3. 5
1, 1, 1, 2, 3, 1, 4, 24, 15, 2, 12, 316, 888, 156, 4, 36, 6080, 84672, 58368, 2032, 8, 144, 149824, 17444160, 66194496, 7019136, 30912, 24, 576, 5728896, 5356808640 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
Table starts
..1.....1.......2........4.......12.........36.....144.576
..1.....3......24......316.....6080.....149824.5728896
..1....15.....888....84672.17444160.5356808640
..2...156...58368.66194496
..4..2032.7019136
..8.30912
.24
LINKS
EXAMPLE
Some solutions for n=3 k=4
..4..6..1..9....6..4..9..3....0.11..9..1....0..9..1..3....6..4.10..0
.11..3..7..5....8.10..0..7....6..5..3..7....6..8..4..7....9..1..7..3
..2..0.10..8....2..1..5.11....4..8..2.10...10..2.11..5....8..2.11..5
CROSSREFS
Row 1 is A111942(n+1).
Sequence in context: A264704 A264659 A371295 * A300625 A264638 A201737
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Nov 17 2015
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 April 13 04:33 EDT 2024. Contains 371639 sequences. (Running on oeis4.)