[seqfan] Re: invasion of third rate programs

Frank Adams-watters franktaw at netscape.net
Tue Dec 18 18:48:53 CET 2018

is(n) = omega(n)==8 && issquarefree(n) would also work. These (Hugo's or mine) aren't really all that slow; only a small fraction of the values of n are factored twice, and the rest is negligible.

Franklin T. Adams-Watters

-----Original Message-----
From: Hugo Pfoertner <yae9911 at gmail.com>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Sent: Tue, Dec 18, 2018 11:38 am
Subject: [seqfan] Re: invasion of third rate programs

(PARI) is(n)=omega(n)==8 && bigomega(n)==8
slow, but correct.

On Tue, Dec 18, 2018 at 5:51 PM Joerg Arndt <arndt at jjj.de> wrote:

> The Pari code is wrong, giving [256, 384, 576, 640, 864, 896, 960]
> when using select(is,vector(10^3,n,n)).
> I am way too tired to fix, so somebody please do the right thing.
> Best regards,   jj

Seqfan Mailing list - http://list.seqfan.eu/

More information about the SeqFan mailing list