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A026490 Length of n-th run of identical symbols in A026465. 3
1, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Claude Lenormand, Deux transformations sur les mots, Preprint, 5 pages, Nov 17 2003. Apparently unpublished. This is a scanned copy of the version that the author sent to me in 2003. - N. J. A. Sloane, Sep 09 2018. See page 2.

MATHEMATICA

Length /@ Split[Length /@ Split[ThueMorse[Range[0, 200]]]] (* Vladimir Reshetnikov, Apr 27 2016 *)

PROG

(Haskell)

import Data.List (group)

a026490 n = a026490_list !! (n-1)

a026490_list = map length $ group a026465_list

-- Reinhard Zumkeller, Jul 15 2014

CROSSREFS

Cf. A010060, A026465.

Sequence in context: A137927 A321864 A084311 * A053555 A324645 A124160

Adjacent sequences:  A026487 A026488 A026489 * A026491 A026492 A026493

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified March 26 10:57 EDT 2019. Contains 321491 sequences. (Running on oeis4.)