[seqfan] Re: A purely hypothetical question on odd perfect numbers and the OEIS

[Richard Mathar]

http://list.seqfan.eu/pipermail/seqfan/2010-December/006612.html

bj> Date: Thu, 2 Dec 2010 17:58:47 -0800
bj> From: =?ISO-8859-1?Q?Beno=EEt_Jubin?= 
bj> To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
bj> Subject: [seqfan] Re: A purely hypothetical question on odd perfect numbers
bj>  and the OEIS
bj> 
bj> A less hypothetical example is the sequence of integers where
bj> pi(x)-li(x) changes of sign.  It is known to be infinite, with first
bj> term probably around 10^316. See Skewes' number on Wikipedia.

See the Saouter-Demichel paper in A057752 .