A080748 Number of distinct prime factors of n-th Fermat pseudoprime to base 2.

2, 3, 3, 3, 2, 3, 3, 2, 3, 2, 3, 2, 2, 2, 3, 2, 2, 3, 2, 2, 3, 3, 2, 3, 4, 3, 3, 2, 3, 2, 2, 3, 3, 4, 2, 2, 4, 2, 3, 3, 3, 3, 2, 2, 2, 3, 3, 2, 4, 4, 3, 2, 3, 2, 2, 3, 4, 3, 2, 2, 4, 4, 2, 2, 3, 4, 3, 4, 2, 2, 3, 2, 3, 2, 3, 2, 3, 3

Offset

1,1

Comments

What is the average order of this sequence? In particular, is it bounded? For extremal behavior, see A007011. - Charles R Greathouse IV, Sep 12 2012

Links

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A001567.

Sequence in context: A096520 A236552 A352628 * A305374 A084966 A303432

Adjacent sequences: A080745 A080746 A080747 * A080749 A080750 A080751

Keyword

nonn

Author

Benoit Cloitre, Mar 08 2003

Status

approved