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Search: id:A098010
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| A098010 |
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Record lengths of transient part of aliquot sequences corresponding to entries in A098009. |
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+0
5
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OFFSET
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1,2
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EXAMPLE
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138 has a transient of length 177 (see Guy's book).
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MATHEMATICA
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g[n_] := If[n > 0, DivisorSigma[1, n] - n, 0]; f[n_] := NestWhileList[g, n, UnsameQ, All]; a = -1; Do[b = Length[ f[n]] - 2; If[b > a, a = b; Print[b]], {n, 275}] (from Robert G. Wilson v Sep 10 2004)
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CROSSREFS
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See A098009 for discussion, see A098008 for references.
Sequence in context: A049876 A049795 A014251 this_sequence A088533 A091155 A027362
Adjacent sequences: A098007 A098008 A098009 this_sequence A098011 A098012 A098013
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Sep 10 2004
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EXTENSIONS
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18 and 178 from Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 10 2004
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