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!)
A280466 Number of distinct length-n blocks (aka subword complexity) of Möbius function mu(n) (A008683). 4
1, 3, 9, 27, 65, 179, 473, 1163, 2465, 6371, 15785, 36539 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..11.

EXAMPLE

For n = 4 the 16 blocks that do not occur are those containing no 0, so there are 81 - 16 = 65 of them.

CROSSREFS

Cf. A008683.

Cf. A280468, which gives the length of the shortest prefix containing all the length-n blocks.

Sequence in context: A260938 A274626 A161712 * A137368 A191007 A036215

Adjacent sequences:  A280463 A280464 A280465 * A280467 A280468 A280469

KEYWORD

nonn,more

AUTHOR

Jeffrey Shallit, Jan 03 2017

EXTENSIONS

a(10) from Jeffrey Shallit, Apr 17 2017

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 August 4 09:03 EDT 2020. Contains 336201 sequences. (Running on oeis4.)