A098200 Number of distinct terms in iteration-list when cototient-function[=A051953] is iterated and the initial value is even number.

3, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 7, 8, 8, 8, 8, 9, 8, 8, 8, 9, 8, 9, 8, 9, 9, 8, 8, 9, 9, 9, 9, 9, 9, 10, 9, 10, 10, 9, 9, 10, 9, 9, 9, 9, 10, 10, 9, 10, 10, 10, 9, 11, 10, 10, 10, 9, 9, 11, 9, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 10, 10, 11, 10, 10, 11, 11, 11, 11, 11, 10, 11

Offset

1,1

Comments

Seems larger than A053475[2n+1]=A098201[n]

Links

Table of n, a(n) for n=1..87.

Formula

a[n]=A053475[2n]

Crossrefs

Cf. A051953, A053475.

Sequence in context: A120677 A266898 A370302 * A092405 A130234 A108852

Adjacent sequences: A098197 A098198 A098199 * A098201 A098202 A098203

Keyword

nonn

Author

Labos Elemer, Sep 22 2004

Status

approved