login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A229011 Number of arrays of median of three adjacent elements of some length n+2 0..7 array, with no adjacent equal elements in the latter. 1
8, 62, 470, 2666, 13040, 60180, 273124, 1248872, 5780144, 26993340, 126638342, 594901860, 2793932346, 13112533536, 61505348386, 288407464930, 1352248997558, 6340299132898, 29728967922162, 139400729229576, 653670375108782 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A229012.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..127

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A227439 A144143 A284225 * A126628 A085353 A125396

Adjacent sequences:  A229008 A229009 A229010 * A229012 A229013 A229014

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 10 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 October 28 09:31 EDT 2020. Contains 338052 sequences. (Running on oeis4.)