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A034916 31752-hyperperfect numbers: n = 31752*(sigma(n)-n-1) + 1. 7
4660241041, 7220722321, 12994506001, 52929885457, 60771359377 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

No more terms < 4*10^13. - Lars Blomberg, Oct 19 2015

LINKS

Table of n, a(n) for n=1..5.

J. S. McCranie, A study of hyperperfect numbers, J. Int. Seqs. Vol. 3 (2000) #P00.1.3.

CROSSREFS

Cf. A000396, A007593, A220290, A028499-A028502.

Sequence in context: A270305 A286817 A280182 * A172726 A172797 A199631

Adjacent sequences:  A034913 A034914 A034915 * A034917 A034918 A034919

KEYWORD

hard,more,nonn

AUTHOR

Jud McCranie

STATUS

approved

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Last modified February 25 03:06 EST 2018. Contains 299630 sequences. (Running on oeis4.)