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A025477 Exponent of n-th nontrivial prime power (A025475). 1
0, 2, 3, 2, 4, 2, 3, 5, 2, 6, 4, 2, 3, 7, 2, 5, 8, 2, 3, 2, 9, 2, 4, 6, 2, 2, 10, 3, 2, 2, 2, 11, 7, 3, 2, 4, 2, 5, 2, 2, 12, 2, 3, 2, 2, 2, 8, 3, 2, 2, 13, 2, 2, 2, 2, 2, 3, 2, 4, 6, 2, 14, 5, 2, 2, 2, 9, 2, 2, 3, 2, 2, 2, 4, 3, 2, 2, 2, 15, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 10, 2, 16, 2, 3, 2, 2, 2, 2, 7, 2, 3, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) = A051903(A025475(n)) = A001222(A025475(n)). - Reinhard Zumkeller, Mar 10 2003

LINKS

Table of n, a(n) for n=1..104.

CROSSREFS

Sequence in context: A183152 A210942 A080771 * A080189 A076399 A286602

Adjacent sequences:  A025474 A025475 A025476 * A025478 A025479 A025480

KEYWORD

easy,nonn

AUTHOR

David W. Wilson

EXTENSIONS

Edited by N. J. A. Sloane, Jan 17 2009 at the suggestion of R. J. Mathar

STATUS

approved

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Last modified April 18 05:44 EDT 2021. Contains 343072 sequences. (Running on oeis4.)