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!)
A203939 Number of (n+1)X4 0..5 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively 1
36672, 1350442, 32094464, 568991365, 7806803388, 88637852693, 853966571340, 7204888459175, 54167606326812, 369279272035480, 2310457600833830, 13412611572570908, 72857443060898091, 373081682057371249 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A203944

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

..4..1..5..4....0..5..5..5....5..4..5..4....5..5..5..5....3..3..3..5

..0..5..4..5....0..5..5..5....4..5..4..5....5..5..5..5....3..3..3..5

..5..4..5..4....1..5..5..5....5..4..5..5....5..5..5..5....1..5..5..3

CROSSREFS

Sequence in context: A250540 A251797 A143369 * A061739 A232135 A212467

Adjacent sequences:  A203936 A203937 A203938 * A203940 A203941 A203942

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 08 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 January 17 17:47 EST 2022. Contains 350402 sequences. (Running on oeis4.)