The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A203549 Number of nX7 0..4 arrays with every nonzero element less than or equal to some NW, E or S neighbor 1
1, 5448482, 158110806032, 1791660443900385, 18555799450636433964, 218138773893328980719919, 2637221656906543119366072476, 31262034046818587403571213590974, 368265394744290722981036142149330527 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A203550
LINKS
EXAMPLE
Some solutions for n=5
..4..2..2..1..0..0..2....4..1..4..1..3..0..1....1..4..2..3..3..4..1
..4..3..2..4..1..0..2....4..0..4..4..3..3..2....0..4..3..2..1..4..3
..4..1..2..4..0..0..2....4..4..1..2..2..0..3....3..4..1..0..3..4..0
..4..3..4..4..3..2..2....2..3..3..1..3..0..0....1..4..0..1..0..4..0
..4..4..3..4..1..3..2....2..2..1..0..3..3..0....3..4..4..2..3..4..4
CROSSREFS
Sequence in context: A263214 A125832 A206325 * A230793 A263197 A283652
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 02 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 May 20 08:57 EDT 2024. Contains 372710 sequences. (Running on oeis4.)