A014365 Aliquot sequence starting at 1134.

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

Offset: 0

Author

Paul Zimmermann

Keywords

• nonn

References

• Richard K. Guy, Unsolved Problems in Number Theory, 3rd Edition, Springer, 2004, Section B6, pp. 92-95.

Links

• Amiram Eldar, Table of n, a(n) for n = 0..3839 (terms 0..3568 from Robert G. Wilson v)
• Christophe Clavier, Aliquot Sequences.
• factordb.com, Aliquot sequence of 1134.
• Robert G. Wilson v, terms n = 0..3568 with factorization.
• Paul Zimmermann, Latest information.
• Index entries for sequences related to aliquot parts.

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.

Cf. A001065.

Programs

Mathematica

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

PARI

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

Formula

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