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!)
A143586 Length of row n of the Kolakoski fan A143477. 4
1, 1, 2, 4, 6, 9, 13, 19, 29, 44, 66, 99, 151, 225, 338, 506, 761, 1138, 1705, 2555, 3835, 5751, 8629, 12953, 19426, 29146, 43723, 65585, 98351, 147501, 221259, 331899, 497861, 746874, 1120279, 1680480, 2520838, 3781134, 5671673, 8507660, 12761336 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Conjecture: if L(n)=A143586(n), then lim(L(n+1)/L(n)) = 3/2. For a more general conjecture see A143589.

LINKS

Table of n, a(n) for n=1..41.

EXAMPLE

The first 4 rows of A143477 are

1

2

22

1122. Their lengths are 1,1,2,4.

CROSSREFS

Cf. A000002, A143477.

Sequence in context: A039900 A039902 A081659 * A241546 A280918 A081225

Adjacent sequences:  A143583 A143584 A143585 * A143587 A143588 A143589

KEYWORD

nonn

AUTHOR

Clark Kimberling, Aug 25 2008

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 July 8 04:16 EDT 2020. Contains 335504 sequences. (Running on oeis4.)