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!)
A202915 Number of nX7 0..7 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 0
45648, 66085464308, 43681585962838352, 22397115742156661223732, 12023921497279230314645570796, 6613658872365063161591092431692334 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A202916

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

..1..2..5..3..4..1..0....2..5..7..7..3..6..3....1..7..0..0..5..3..2

..1..4..5..4..4..3..4....1..7..3..1..7..6..6....2..7..6..6..5..1..4

..3..3..3..2..4..2..4....7..7..2..4..7..0..6....5..1..6..2..5..0..4

..0..5..5..1..7..7..5....2..2..0..3..1..6..6....7..7..4..1..5..1..0

CROSSREFS

Sequence in context: A251397 A184473 A157653 * A257358 A232255 A031841

Adjacent sequences:  A202912 A202913 A202914 * A202916 A202917 A202918

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 26 2011

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 September 29 02:55 EDT 2022. Contains 357082 sequences. (Running on oeis4.)