A143586 Length of row n of the Kolakoski fan A143477.

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

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 * A363457 A344677 A241546

Adjacent sequences: A143583 A143584 A143585 * A143587 A143588 A143589

Keyword

nonn

Author

Clark Kimberling, Aug 25 2008

Status

approved