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Search: id:A079869
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A079869 a(1)=1 and for n>1: round(n^(1/Omega(n)))^Omega(n), where Omega(n) is the total number of prime factors of n (A001222). +0
5
1, 2, 3, 4, 5, 4, 7, 8, 9, 9, 11, 8, 13, 16, 16, 16, 17, 27, 19, 27, 25, 25, 23, 16, 25, 25, 27, 27, 29, 27, 31, 32, 36, 36, 36, 16, 37, 36, 36, 81, 41, 27, 43, 64, 64, 49, 47, 32, 49, 64, 49, 64, 53, 81, 49, 81, 64, 64, 59, 81, 61, 64, 64, 64, 64, 64, 67, 64, 64, 64, 71, 32, 73 (list; graph; listen)
OFFSET

1,2

COMMENT

A079867(n)<=a(n)<=A079869(n); A020639(n)<=a(n)<=A006530(n);

a(m)=m=A079867(m)=A079871(m) iff m is a prime power (A000961).

CROSSREFS

a(n)=A079868(n)^A001222(n). Cf. A079872, A068794, A068795.

Adjacent sequences: A079866 A079867 A079868 this_sequence A079870 A079871 A079872

Sequence in context: A058084 A074882 A079867 this_sequence A075054 A101916 A100771

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jan 13 2003

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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