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!)
A268937 Number of length-n 0..n arrays with no repeated value unequal to the previous repeated value plus one mod n+1. 1
2, 9, 60, 565, 6834, 101192, 1773384, 35904789, 824720230, 21189902503, 602161461276, 18752026405918, 635032992414506, 23234614293228525, 913376056016994576, 38392537083966394681, 1718296926207889973454 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A268944.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A268944.

Sequence in context: A036774 A306065 A166882 * A269634 A269530 A269672

Adjacent sequences:  A268934 A268935 A268936 * A268938 A268939 A268940

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 16 2016

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 26 17:38 EDT 2021. Contains 348268 sequences. (Running on oeis4.)