A100429 Bisection of Kolakoski sequence A000002.

2, 1, 2, 2, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 2, 1, 1, 2, 2, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 1, 2, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 2, 1, 2, 2, 1, 2

Offset

1,1

Comments

Lengths of runs of twos in A000002. - Reinhard Zumkeller, Aug 03 2013

As in the Kolakoski sequence itself, the length of runs in this sequence is 1 or 2 (see A100428). - Jean-Christophe Hervé, Oct 04 2014

Links

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

Prog

(Haskell)
a100429 n = a100429_list !! n
a100429_list = g a000002_list where g (_:v:vs) = v : g vs
-- Reinhard Zumkeller, Aug 03 2013

Crossrefs

Cf. A100428, A216345.

Sequence in context: A129406 A123018 A336532 * A049710 A352632 A025143

Adjacent sequences: A100426 A100427 A100428 * A100430 A100431 A100432

Keyword

nonn,easy

Author

N. J. A. Sloane, Nov 20 2004

Extensions

More terms from Joshua Zucker, May 12 2006

Offset changed by Reinhard Zumkeller, Aug 03 2013

Status

approved