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A014365 Aliquot sequence starting at 1134. 8
1134, 1770, 2550, 4146, 4158, 7362, 8628, 11532, 16272, 29670, 46362, 46374, 48666, 48678, 70362, 86118, 92058, 95622, 95634, 180846, 246834, 381006, 460458, 562902, 612138, 612150, 1316298, 1350582, 1509690, 3086790 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

R. K. Guy, Unsolved Problems in Number Theory, B6.

LINKS

Robert G. Wilson v, Table of n, a(n) for n = 0..3568

Robert G. Wilson v, terms n = 0..3568  with factorization

Christophe CLAVIER, Aliquot Sequences

Paul Zimmermann, Latest information

Index entries for sequences related to aliquot parts.

FORMULA

a(n+1) = A001065(a(n)). - R. J. Mathar, Oct 11 2017

MATHEMATICA

f[n_] := DivisorSigma[1, n] - n; NestList[f, 1134, 100] (* Robert G. Wilson v, Dec 22 2012 *)

PROG

(PARI) a(n, a=1134)={for(i=1, n, a=sigma(a)-a); a} \\ M. F. Hasler, Feb 25 2018

CROSSREFS

Cf. A098007 (length of aliquot sequences); some other examples: A008885 (starting at 30) .. A008892 (starting at 276), A014360 (starting at 552) .. A014364 (starting at 1074), see link to index for a more complete list.

Sequence in context: A122476 A289253 A066365 * A027545 A113708 A206112

Adjacent sequences:  A014362 A014363 A014364 * A014366 A014367 A014368

KEYWORD

nonn

AUTHOR

Paul Zimmermann

STATUS

approved

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Last modified September 21 23:55 EDT 2019. Contains 327286 sequences. (Running on oeis4.)