[seqfan] Highly cototient numbers

Charles Greathouse charles.greathouse at case.edu
Mon Mar 15 06:22:23 CET 2010

I was wondering if anyone was up to the task of extending A100827.  It
seems that there should be much better techniques than just
calculating the first n^2 cototients -- and it would be nice to see an
extended graph.  There are a few helpful comments at A063748, but
these may be well-known and/or obvious.

Charles Greathouse
Case Western Reserve University

More information about the SeqFan mailing list