[seqfan] Re: Mystery tour with a(n)=sigma(a(n-1))

Richard Mathar mathar at strw.leidenuniv.nl
Sun Mar 14 13:37:17 CET 2010

In response to http://list.seqfan.eu/pipermail/seqfan/2010-February/003707.html
I packed some of these aliquot graphs into
Of course, the graphs with many nodes are clipped, and, quoting Elise,
Beethoven et al, there is nothing we can do about it.

Richard Mathar

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