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A014363 Aliquot sequence starting at 966. 4
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 (list; graph; refs; listen; history; text; internal format)
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.
Paul Zimmermann, Latest information.
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
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified July 14 00:54 EDT 2024. Contains 374290 sequences. (Running on oeis4.)