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A080748 Number of distinct prime factors of n-th Fermat pseudoprime to base 2. 1
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 (list; graph; refs; listen; history; text; internal format)
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
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Mar 08 2003
STATUS
approved

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Last modified May 28 01:34 EDT 2024. Contains 372900 sequences. (Running on oeis4.)