[seqfan] Re: Pairs Occurring Only Once Among # Of Divisors

[Richard Mathar]

On behalf of the Quetau pairs A161640 invented in

http://list.seqfan.eu/pipermail/seqfan/2009-June/001652.html

I started some sort of explicit proofs of these in
http://www.strw.leidenuniv.nl/~mathar/progs/a161460.pdf .
The interesting part starts at page 116. This is an unfunded
project and will require some Jovian years to complete.

Richard Mathar