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!)
A250165 Number of length n+1 0..6 arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero 1
7, 67, 639, 5831, 49037, 380939, 2810751, 20169871, 142786013, 1004527983, 7047533399, 49383700439, 345855478109, 2421574390899, 16953120700735, 118679602696751, 830786561364589, 5815618832245175, 40709771502502967 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A250167

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..29

EXAMPLE

Some solutions for n=5

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

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

..6....3....3....4....6....5....6....3....5....6....6....2....2....4....4....2

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

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

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

CROSSREFS

Sequence in context: A250275 A240373 A077789 * A186655 A253175 A124291

Adjacent sequences:  A250162 A250163 A250164 * A250166 A250167 A250168

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 13 2014

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 September 25 12:38 EDT 2021. Contains 347654 sequences. (Running on oeis4.)