A174987 Start with n, iterate the map k -> A167507(k) until we reach 3, 4, 5 or 6; a(n) = which of 3, 4, 5 or 6 we reach first.

4, 4, 4, 3, 4, 5, 6, 4, 4, 4, 3, 4, 5, 6, 4, 6, 5, 4, 4, 4, 5, 4, 4, 3, 4, 4, 4, 4, 4, 4, 6, 3, 3, 4, 5, 3, 4, 3, 3, 3, 4, 5, 5, 6, 4, 5, 4, 5, 5, 5, 4, 6, 6, 4, 6, 6, 5, 6, 6, 6, 4, 5, 5, 6, 4, 5, 4, 5, 5, 5, 4, 4, 6, 4, 5, 4, 6, 6, 6, 6, 5, 6, 6, 5, 4, 6, 4, 6, 6, 6, 4, 6, 5, 4, 4, 4, 5, 4, 4, 4

Offset

1,1

Links

Table of n, a(n) for n=1..100.

Crossrefs

Cf. A167507, A174984, A174985.

Sequence in context: A063570 A023977 A073259 * A214926 A268368 A274947

Adjacent sequences: A174984 A174985 A174986 * A174988 A174989 A174990

Keyword

nonn,base

Author

Jacques ALARDET, Apr 03 2010

Extensions

Edited by N. J. A. Sloane, Apr 05 2010

Status

approved