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A088388 Exponent of largest prime power factor of n, a(1)=0. 3
0, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1, 4, 1, 2, 1, 1, 1, 1, 1, 3, 2, 1, 3, 1, 1, 1, 1, 5, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 4, 2, 2, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 2, 6, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 5, 1, 2, 1, 2, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

A034699(n) = A088387(n)^a(n).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

PROG

(PARI) A088388(n) = if(1==n, 0, my(f=factor(n)); isprimepower(vecmax(vector(#f[, 1], i, f[i, 1]^f[i, 2])))); \\ Antti Karttunen, Jul 22 2018

CROSSREFS

Cf. A034699, A088387.

Sequence in context: A302045 A302035 A307907 * A070013 A070014 A051903

Adjacent sequences:  A088385 A088386 A088387 * A088389 A088390 A088391

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Sep 28 2003

STATUS

approved

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Last modified October 23 23:05 EDT 2021. Contains 348217 sequences. (Running on oeis4.)