A022505 Describe the previous term! (method B - initial term is 9).

9, 91, 9111, 9113, 911231, 9112213111, 911222113113, 91122312311231, 9112223111213112213111, 91122331132111311222113113, 911222321231211331122312311231

Offset

1,1

Comments

Method B = 'digit'-indication followed by 'frequency'.

Links

Table of n, a(n) for n=1..11.

Example

E.g., the term after 9113 is obtained by saying "9 once, 1 twice, 3 once", which gives 911231.

Crossrefs

Cf. A007651, A022470, A022499, A022500, A022501, A022502, A022503, A022504.

Sequence in context: A020236 A068624 A034666 * A225162 A128384 A164913

Adjacent sequences: A022502 A022503 A022504 * A022506 A022507 A022508

Keyword

nonn,base,easy,nice

Author

N. J. A. Sloane

Extensions

a(12)-(14) needlessly added by Alvin Hoover Belt, Jan 31 2010

Status

approved