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Search: id:A088847
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A088847 a(n)=sigma[A087979(n)/phi[n]] or 0 if A087979(n) is not a balanced number. +0
1
1, 1, 3, 4, 4, 6, 6, 8, 9, 8, 10, 12, 12, 14, 15, 16, 16, 18, 18, 20, 21, 20, 22 (list; graph; listen)
OFFSET

1,3

EXAMPLE

While A088830 includes special balanced numbers, A087979 does not include per definitionem. Nevertheless, it seems that A087979 consists only of balanced numbers. This is provable at least for special cases.

CROSSREFS

Cf. A087979, A020492, A088830.

Sequence in context: A061117 A111234 A014683 this_sequence A120613 A117571 A008474

Adjacent sequences: A088844 A088845 A088846 this_sequence A088848 A088849 A088850

KEYWORD

more,nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Nov 17 2003

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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