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A276652 a(n) = denominator of Sum_{p|n} 0.d where p runs through the prime divisors of n. 6
5, 10, 5, 2, 2, 10, 5, 10, 10, 100, 2, 100, 10, 5, 5, 100, 2, 100, 10, 1, 100, 100, 2, 2, 100, 10, 10, 100, 1, 100, 5, 100, 100, 5, 2, 100, 100, 100, 10, 100, 5, 100, 100, 5, 100, 100, 2, 10, 10, 100, 100, 100, 2, 100, 10, 100, 100, 100, 1, 100, 100, 1, 5, 100 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

The first few values of Sum_{p|n} 0.d are: 1/5, 3/10, 1/5, 1/2, 1/2, 7/10, 1/5, 3/10, 7/10, ...

See A276655 - numbers n such that Sum_{p|n} 0.d is an integer.

LINKS

Jaroslav Krizek, Table of n, a(n) for n = 2..1000

FORMULA

a(n) = A276651(n) / (Sum_{p|n} 0.d) where p = prime divisors of n.

EXAMPLE

For n=12; Sum_{p|12} 0.d = 0.2 + 0.3 = 0.5 = 5/10 = 1/2; a(12) = 2.

PROG

(MAGMA) [Denominator(&+[d/(10^(#Intseq(d))): d in PrimeDivisors(n)]): n in [2..1000]]

CROSSREFS

Cf. A276651, A276653, A276654, A276655, A276513.

Sequence in context: A066200 A053822 A262922 * A137404 A110643 A010721

Adjacent sequences:  A276649 A276650 A276651 * A276653 A276654 A276655

KEYWORD

nonn,base,frac

AUTHOR

Jaroslav Krizek, Sep 10 2016

STATUS

approved

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Last modified July 15 16:09 EDT 2019. Contains 325049 sequences. (Running on oeis4.)