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!)
A209959 Number of (n+1)X8 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences 1
18289737, 54603359537, 161711349015585, 479493044479186433, 1421470275154962255801, 4214142277487028096606145, 12493316536665519357482808705, 37037944370044063974355915754673 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A209960
LINKS
EXAMPLE
Some solutions for n=4
..2..0..1..2..0..2..1..0....2..2..1..2..2..2..1..0....0..2..2..1..0..2..2..0
..2..1..1..1..2..2..1..2....0..1..1..1..0..1..1..0....1..2..0..0..2..2..0..0
..0..2..2..2..0..0..2..2....2..2..0..0..0..1..0..2....0..2..1..0..2..2..0..2
..2..1..1..2..0..2..2..0....1..1..1..2..0..2..2..1....2..1..1..1..1..0..0..1
..2..2..0..2..2..1..2..1....1..1..0..2..1..1..1..1....2..2..0..0..1..0..1..1
CROSSREFS
Sequence in context: A073032 A222977 A203884 * A140171 A185854 A073033
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 16 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 March 29 09:14 EDT 2024. Contains 371268 sequences. (Running on oeis4.)