Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #14 Oct 06 2014 17:33:09
%S 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,
%T 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,
%U 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
%N Bisection of Kolakoski sequence A000002.
%C Lengths of runs of twos in A000002. - _Reinhard Zumkeller_, Aug 03 2013
%C 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
%H Reinhard Zumkeller, <a href="/A100429/b100429.txt">Table of n, a(n) for n = 1..10000</a>
%o (Haskell)
%o a100429 n = a100429_list !! n
%o a100429_list = g a000002_list where g (_:v:vs) = v : g vs
%o -- _Reinhard Zumkeller_, Aug 03 2013
%Y Cf. A100428, A216345.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Nov 20 2004
%E More terms from _Joshua Zucker_, May 12 2006
%E Offset changed by _Reinhard Zumkeller_, Aug 03 2013