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A073753 a(n) = A073752(A073752(n)), where A073752(n) = gcd(n/spf(n), n/gpf(n)), with spf(n) as the smallest and gpf(n) as the greatest prime factor of n (see A020639, A006530). 3
1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 1, 1, 1, 1, 1, 16, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 4, 9, 1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 1, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

COMMENTS

a(n) = A062378(n) for n<90, but a(90)=3 <> A062378(90)=1.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A073752(A073752(n)).

CROSSREFS

Cf. A006530, A020639, A073752.

Differs from A062378 for the first time at n=90.

Sequence in context: A204133 A342017 A062378 * A290602 A255404 A078090

Adjacent sequences:  A073750 A073751 A073752 * A073754 A073755 A073756

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Aug 07 2002

EXTENSIONS

Name edited by Antti Karttunen, Sep 23 2017

STATUS

approved

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Last modified April 11 14:10 EDT 2021. Contains 342886 sequences. (Running on oeis4.)