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!)
A212946 Number of 4Xn 0..n-1 arrays with no column j greater than or equal to than column j-1 in all rows 1
1, 175, 331489, 2509306671, 52311221188001, 2438624218076957695, 221920456466342315024785, 35805749325509532346413477679, 9531951779328890331855321215698177 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 4 of A212943
LINKS
EXAMPLE
Some solutions for n=4
..3..3..2..1....1..3..2..1....2..1..1..1....3..3..0..0....0..0..1..0
..3..2..2..2....1..1..0..3....0..2..1..3....3..3..3..2....2..2..0..1
..2..3..2..2....2..3..3..0....3..1..2..0....1..0..1..0....3..2..0..0
..3..1..1..2....1..0..3..0....2..2..1..2....1..1..0..3....0..0..1..0
CROSSREFS
Sequence in context: A239429 A268872 A104651 * A172685 A344280 A266058
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 March 1 03:27 EST 2024. Contains 370430 sequences. (Running on oeis4.)