[seqfan] Who understands Granville numbers?

Alonso Del Arte alonso.delarte at gmail.com
Thu Oct 28 00:46:06 CEST 2010

So I come across the concept of Granville numbers
in Jean-Marie de Koninck's book *Those Fascinating Numbers*. But the concept
is giving me a headache. Is the definition of the set S recursive (one
having to do a complete divisor tree to figure out membership) or am I
completely misunderstanding it? I've had an easier time doing my taxes.


P.S. Daniel and I have signed up for a couple of slots for Sequence of the
Day in November. Any SeqFan who hasn't yet chosen a Sequence of the Day is
invited to sign up to choose it one day in November or December.

More information about the SeqFan mailing list