A187199 Parse the Kolakoski sequence A000002 into distinct phrases 1, 2, 21, 12, 122, 1221, 121, 12212, 11, ...; a(n) = length of n-th phrase.

1, 1, 2, 2, 3, 4, 3, 5, 2, 3, 3, 4, 6, 3, 6, 4, 2, 5, 4, 6, 4, 3, 5, 7, 4, 5, 7, 5, 4, 6, 6, 5, 5, 6, 6, 4, 8, 5, 5, 9, 10, 7, 9, 8, 7, 5, 8, 11, 5, 6, 6, 7, 8, 7, 6, 6, 7, 7, 7, 9, 4, 4, 8, 8, 10, 5, 7, 8, 7, 9, 8, 12, 6, 10, 6, 8, 6, 10, 7, 9, 9, 8, 7, 8, 7, 9, 8, 7, 8, 8, 9, 9, 10, 8, 10, 9, 8, 11, 5, 6

Offset

1,3

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program

Prog

(PARI) \\ See Links section.

Crossrefs

Cf. A000002, A007782, A109337, A187180-A187188, A187200.

Sequence in context: A183517 A080046 A047675 * A297907 A298501 A298320

Adjacent sequences: A187196 A187197 A187198 * A187200 A187201 A187202

Keyword

nonn

Author

N. J. A. Sloane, Mar 06 2011

Status

approved