A085694 Let f(0) = 1, f(1) = 12, f(2) = 223, f(3) = 3334, f(4) = 44445, f(5) = 555556, etc. Sequence gives limiting value of f(0), f(f(0)), f(f(f(0))), ...

1, 2, 2, 2, 3, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4, 3, 3, 3, 4, 3, 3, 3, 4, 3, 3, 3, 4, 4, 4, 4, 4, 5, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4, 3, 3, 3, 4, 3, 3, 3, 4, 3, 3, 3, 4, 4, 4, 4, 4, 5, 2, 2, 3, 2, 2, 3, 3, 3, 3, 4

Offset

1,2

Comments

The positions where 1, 2, 3, 4, 5, ... appear are 1, 2, 5, 15, 52, ... (Bell numbers A000110).

Links

Table of n, a(n) for n=1..99.

Crossrefs

Cf. A085693, A000110, A048993 (the number of occurrences of k in n-th block).

Sequence in context: A219252 A290839 A346651 * A258570 A257572 A343902

Adjacent sequences: A085691 A085692 A085693 * A085695 A085696 A085697

Keyword

nonn,easy

Author

Philippe Deléham, Aug 14 2003

Extensions

Extended by Philippe Deléham, Jun 10 2005

Status

approved