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A249508 Lengths of complete iterations (direct and reverse branches) of the Kolakoski sequence A000002. 8
2, 4, 5, 8, 10, 14, 17, 24, 28, 38, 45, 60, 70, 92, 107, 141, 163, 214, 248, 324, 375, 489, 565, 736, 850, 1107, 1278, 1663, 1920, 2495, 2880, 3742, 4317, 5612, 6474, 8415, 9710, 12626, 14567, 18941, 21857, 28415, 32789, 42629, 49187, 63953, 73793, 95944, 110710, 143946, 166097 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See comments in A249507 for a description of iterated words in the Kolakoski sequence.

LINKS

Jean-Christophe Hervé, Table of n, a(n) for n = 1..65

FORMULA

a(2n+1) = A054352(n+1) +  A054352(n) - 1;

a(2n+2) = A054352(n+2) +  A054352(n) - 1.

EXAMPLE

The OK sequence begins as (highlighting an iteration of length 10): 122112-1221221121-1221211.., where iterations of length 2, 4, 5 and 8 can also be seen.

CROSSREFS

Cf. A000002, A054351, A054352, A249093, A249094, A249507.

Sequence in context: A182195 A092265 A262937 * A163295 A101274 A080222

Adjacent sequences:  A249505 A249506 A249507 * A249509 A249510 A249511

KEYWORD

nonn

AUTHOR

Jean-Christophe Hervé, Oct 30 2014

STATUS

approved

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Last modified September 21 07:08 EDT 2019. Contains 327253 sequences. (Running on oeis4.)