login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons 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 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A203936 Number of (n+1)X(n+1) 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 0
406, 91396, 32094464, 14543414270, 7208336070660, 3601865763979034, 1772878084052954152 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A203944

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

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

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

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

..3..5..4..5..5....2..5..5..5..5....3..4..5..5..5....4..5..5..5..5

..5..4..5..5..5....2..5..5..5..5....5..4..5..5..5....4..5..5..5..5

CROSSREFS

Sequence in context: A233052 A210329 A317982 * A172891 A172921 A063138

Adjacent sequences:  A203933 A203934 A203935 * A203937 A203938 A203939

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 December 3 15:15 EST 2021. Contains 349463 sequences. (Running on oeis4.)