A034916 31752-hyperperfect numbers: n = 31752*(sigma(n)-n-1) + 1.

4660241041, 7220722321, 12994506001, 52929885457, 60771359377

Offset

1,1

Comments

No other terms below 10^19. - Max Alekseyev, Dec 01 2019

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