[seqfan] Re: A purely hypothetical question on odd perfect numbers and the OEIS
mathar at strw.leidenuniv.nl
Fri Dec 3 12:48:32 CET 2010
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> 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 .
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