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A034898 n-th term of A034897 is an a(n)-hyperperfect number. 3
1, 2, 1, 6, 3, 1, 12, 18, 18, 12, 2, 30, 1, 11, 6, 2, 60, 48, 19, 132, 132, 10, 192, 2, 31, 168, 108, 66, 35, 252, 78, 132, 342, 366, 390, 168, 348, 282, 498, 540, 546, 59, 12, 378, 438, 4, 222, 336, 18, 660, 138, 798, 810, 528, 450, 75, 252, 150, 948, 162 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, Sect. B2.

Roberts, Lure of the Integers, see Integer 28, p. 177.

LINKS

Donovan Johnson, Table of n, a(n) for n = 1..10000

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

Eric Weisstein's World of Mathematics, Hyperperfect Number.

CROSSREFS

Cf. A034897.

Sequence in context: A060556 A222969 A132813 * A059300 A046803 A121468

Adjacent sequences:  A034895 A034896 A034897 * A034899 A034900 A034901

KEYWORD

nonn

AUTHOR

Jud McCranie

EXTENSIONS

More terms from Donovan Johnson, Nov 20 2012

STATUS

approved

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Last modified September 22 01:48 EDT 2014. Contains 247035 sequences.