login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A212944 Number of 2Xn 0..n-1 arrays with no column j greater than or equal to than column j-1 in all rows 1
1, 7, 181, 10311, 1016501, 152747323, 32383630189, 9192184928839, 3362887443335365, 1540205755192368507, 863047803911184565037, 580733337119861320815291, 462049013032247252827284109 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 2 of A212943
LINKS
EXAMPLE
Some solutions for n=4
..1..1..2..2....1..0..3..3....3..3..0..3....0..1..0..1....0..0..1..3
..3..2..1..0....1..3..2..0....1..0..2..0....3..2..3..1....3..2..1..0
CROSSREFS
Sequence in context: A226550 A141983 A080484 * A068339 A219404 A202026
KEYWORD
nonn
AUTHOR
R. H. Hardin May 31 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 December 7 18:28 EST 2023. Contains 367660 sequences. (Running on oeis4.)