A014363 Aliquot sequence starting at 966.

966, 1338, 1350, 2370, 3390, 4818, 5838, 7602, 9870, 17778, 17790, 24978, 27438, 30882, 30894, 34386, 40782, 52530, 82254, 82266, 82278, 121770, 241110, 450090, 750870, 1295226, 1572678, 1919538, 2760984, 4964136

Offset

0,1

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..1035 (from factordb.com; terms 0..277 from T. D. Noe)

Christophe Clavier, Aliquot Sequences.

factordb.com, Aliquot sequence of 966.

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

FixedPointList[If[# > 0, DivisorSigma[1, #] - #, 0]&, 966, 100] (* Jean-François Alcover, Mar 28 2020 *)

Prog

(PARI) a(n, a=966)={for(i=1, n, a=sigma(a)-a); a} \\ M. F. Hasler, Feb 24 2018

Crossrefs

Cf. A008885 (starting at 30) .. A008892 (starting at 276), A014360 (starting at 552) .. A014365 (starting at 1134), ..., A171103 (starting at 46758), A098007 (length of aliquot sequences).

Cf. A001065.

Sequence in context: A186468 A345549 A345802 * A260291 A251232 A202049

Adjacent sequences: A014360 A014361 A014362 * A014364 A014365 A014366

Keyword

nonn

Author

Paul Zimmermann

Status

approved