[seqfan] Re: Mystery tour with a(n)=sigma(a(n-1))
rkg at cpsc.ucalgary.ca
Wed Feb 17 23:29:17 CET 2010
Many thanks for this, but I didn't get either
reference to come up, and when I accessed your
programs, I didn't see anything relevant.
Please excuse my incompetence. R.
On Wed, 17 Feb
> Under the map of n -> sigma(n)-n = A001065(n) the primes all flush into 1,
> so there are two graphs, one with the 1, too crowded in some sense,
> and one without
> Richard Mathar
> Seqfan Mailing list - http://list.seqfan.eu/
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