A088204 Infinite audioactive word that shifts 1 place left under "Look and Say" method A, starting with a(1)=3.

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, 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, 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

Offset

1,1

Comments

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]

Links

Table of n, a(n) for n=1..105.

Crossrefs

Cf. A088203, A087282, A005150, A006715.

Cf. A225224, A221646 (seed one).

Sequence in context: A016472 A095346 A060839 * A100375 A353063 A274613

Adjacent sequences: A088201 A088202 A088203 * A088205 A088206 A088207

Keyword

nonn,easy

Author

Paul D. Hanna, Sep 22 2003

Status

approved