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!)
A208580 Number of nX5 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors 0
52, 84124, 960563033, 35787552851324, 3233126493451564482, 596705277048973363385024, 200823740464350277512414467867 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A208581

LINKS

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

EXAMPLE

Some solutions for n=4

..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0

..1..1..1..1..0....1..1..1..1..0....1..1..1..2..0....1..1..1..1..0

..2..0..0..1..0....0..2..0..1..0....0..0..0..1..0....0..0..0..1..1

..0..1..0..3..0....0..1..0..1..0....1..1..0..1..0....1..1..0..0..0

CROSSREFS

Sequence in context: A206388 A263223 A198525 * A208585 A208464 A211252

Adjacent sequences:  A208577 A208578 A208579 * A208581 A208582 A208583

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 29 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 9 02:53 EST 2021. Contains 349625 sequences. (Running on oeis4.)