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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
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).
CROSSREFS
Cf. A085693, A000110, A048993 (the number of occurrences of k in n-th block).
Sequence in context: A219252 A290839 A346651 * A258570 A257572 A343902
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Aug 14 2003
EXTENSIONS
Extended by Philippe Deléham, Jun 10 2005
STATUS
approved