A098201 Number of distinct terms in iteration-list when cototient-function[=A051953] is iterated and the initial value is odd number.

2, 3, 3, 3, 4, 3, 3, 4, 3, 3, 5, 3, 4, 5, 3, 3, 4, 4, 3, 5, 3, 3, 6, 3, 4, 4, 3, 5, 6, 3, 3, 6, 4, 3, 5, 3, 3, 5, 4, 3, 6, 3, 6, 4, 3, 4, 5, 4, 3, 6, 3, 3, 7, 3, 3, 6, 3, 6, 7, 4, 4, 4, 5, 3, 7, 3, 5, 7, 3, 3, 5, 4, 5, 7, 3, 3, 7, 5, 3, 6, 4, 3, 7, 3, 4, 7, 3, 6, 4, 3, 3, 7, 4, 6, 7, 3, 3, 7, 3, 3, 6, 5, 7, 6, 4

Offset

1,1

Comments

Seems smaller than A053475[2n]=A098200[n]

Links

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

Formula

a[n]=A053475[ -1+2n]

Crossrefs

Cf. A051953, A053475, A098200.

Sequence in context: A049837 A326202 A322988 * A341883 A175239 A176228

Adjacent sequences: A098198 A098199 A098200 * A098202 A098203 A098204

Keyword

nonn

Author

Labos Elemer, Sep 22 2004

Status

approved