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A143645
Aliquot sequence starting at 24.
2
24, 36, 55, 17, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
OFFSET
0,1
FORMULA
a(n+1) = A001065(a(n)). - R. J. Mathar, Oct 11 2017
MATHEMATICA
NestList[If[#>0, DivisorSigma[1, #]-#, 0]&, 24, 100] (* Paolo Xausa, Oct 16 2023 *)
CROSSREFS
Cf. A001065.
Sequence in context: A187516 A165602 A124283 * A003176 A003138 A003177
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 30 2008
STATUS
approved