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 A014360 Aliquot sequence starting at 552. 9
 552, 888, 1392, 2328, 3552, 6024, 9096, 13704, 20616, 30984, 46536, 86904, 165816, 367704, 628356, 837836, 628384, 630356, 491884, 368920, 499400, 772840, 978650, 975652, 744248, 696712, 628628, 857836, 857892, 1472268 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 REFERENCES R. K. Guy, Unsolved Problems in Number Theory, B6. LINKS Tyler Busby, Table of n, a(n) for n = 0..1142 (terms 0..352 from T. D. Noe) 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 FixedPointList[If[# > 0, DivisorSigma[1, #] - #, 0]&, 552, 100] (* Jean-François Alcover, Mar 28 2020 *) PROG (PARI) a(n, a=552)={for(i=1, n, a=sigma(a)-a); a} \\ M. F. Hasler, Feb 24 2018 CROSSREFS Cf. A001065, A098007 (length of aliquot sequences). Some other examples: A008885 (starting at 30) .. A008892 (starting at 276), A014361 (starting at 564) .. A014365 (starting at 1134), see link to index for a more complete list. Sequence in context: A263947 A203629 A119897 * A158636 A251161 A189549 Adjacent sequences: A014357 A014358 A014359 * A014361 A014362 A014363 KEYWORD nonn AUTHOR Paul Zimmermann STATUS approved

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Last modified August 2 22:39 EDT 2024. Contains 374875 sequences. (Running on oeis4.)