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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
OFFSET
1,1
CROSSREFS
Sequence in context: A275783 A102021 A350911 * A358237 A294720 A082002
KEYWORD
more,nonn
AUTHOR
Omar E. Pol, Jan 19 2009
EXTENSIONS
a(6)-a(7) from Donovan Johnson, Aug 25 2012
STATUS
approved