A088204 - OEIS

%I #13 May 17 2013 02:34:05

%S 3,1,3,1,1,1,3,3,1,2,3,1,1,1,2,1,3,3,1,1,2,1,1,2,3,2,1,1,2,2,1,1,2,1,

%T 3,1,2,2,1,2,2,2,1,1,2,1,1,1,3,1,1,2,2,1,1,3,2,2,1,1,2,3,1,1,3,2,1,2,

%U 2,2,1,1,3,2,2,2,1,1,2,1,3,2,1,1,3,1,2,1,1,3,2,2,1,1,3,3,2,2,1,1,2,1,1,1,3

%N Infinite audioactive word that shifts 1 place left under "Look and Say" method A, starting with a(1)=3.

%C The sequence is obtained continuously by applying the look-and-say rule from seed 3 : 3 -> 1,3 -> 1,1,1,3 -> etc. The sequence is then determined by pairs of digits. Terms of even ranks are counts while odd ranks are figures. A225224 and A221646 are from seed 1 and A088203 from seed 2. [Jean-Christophe Hervé, May 07 2013]

%Y Cf. A088203, A087282, A005150, A006715.

%Y Cf. A225224, A221646 (seed one).

%K nonn,easy

%O 1,1

%A _Paul D. Hanna_, Sep 22 2003