login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A222985 Number of nX7 0..2 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
17, 1172, 36987, 4405097, 183010307, 26345532486, 1202086792105, 180821359299832, 8463651301168857, 1290846776123480411, 61103325028133094620, 9391211217321900719984, 447723422606405342204055 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A222986

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A032629 A232942 A075602 * A229833 A305872 A172456

Adjacent sequences:  A222982 A222983 A222984 * A222986 A222987 A222988

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 11 2013

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 June 19 17:48 EDT 2019. Contains 324222 sequences. (Running on oeis4.)