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A144641
Indices of harmonic (or Ore) numbers (
A001599
) that are also perfect numbers.
0
2, 3, 6, 11, 59, 176, 310
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..7.
CROSSREFS
Cf.
A000396
,
A001599
.
Sequence in context:
A275783
A102021
A350911
*
A358237
A294720
A082002
Adjacent sequences:
A144638
A144639
A144640
*
A144642
A144643
A144644
KEYWORD
more
,
nonn
AUTHOR
Omar E. Pol
, Jan 19 2009
EXTENSIONS
a(6)-a(7) from
Donovan Johnson
, Aug 25 2012
STATUS
approved
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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)