[seqfan] Re: A119558 -- FIXED
Neil Sloane
njasloane at gmail.com
Tue Feb 28 04:01:24 CET 2012
Why not ask Benoit Cloitre directly?
benoit7848c at orange.fr
On Mon, Feb 27, 2012 at 9:20 AM, Charles Greathouse <
charles.greathouse at case.edu> wrote:
> I wonder if the 2006 preprint ever materialized.
>
> Charles Greathouse
> Analyst/Programmer
> Case Western Reserve University
>
> On Mon, Feb 27, 2012 at 9:12 AM, Harvey P. Dale <hpd1 at nyu.edu> wrote:
> > Please ignore my earlier message on this sequence. I had,
> > indeed, misunderstood the definition and a revised Mma program (see
> > below) now correctly generates its terms:
> >
> > RecurrenceTable[{a[1]==a[2]==0,a[3]==1,a[n]==Abs[a[n-1]-a[n-2]]+(-1)^n
> > a[n-3]},a,{n,80}]
> >
> > I will submit that program once the OEIS website is operating again (it
> > appears to be down at the moment).
> >
> > Apologies for the prior posting on this sequence.
> >
> > But, once again, even with my now-corrected Mma program, is the
> > offset correct?
> >
> > Best,
> >
> > Harvey
> >
> >
> > -----Original Message-----
> > From: seqfan-bounces at list.seqfan.eu
> > [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Harvey P. Dale
> > Sent: Monday, February 27, 2012 9:05 AM
> > To: Sequence Fanatics Discussion list
> > Subject: [seqfan] A119558
> >
> > This Mma program implements the definition of the above
> > sequence but generates quite different terms:
> >
> >
> >
> > RecurrenceTable[{a[1]==a[2]==0,a[3]==1,a[n]==Abs[a[n-1]-a[n-2]]+(-1)^(n
> > a[n-3])},a,{n,80}]
> >
> >
> >
> > Is the Mma program wrong, or are the terms of the sequence wrong?
> >
> >
> >
> > Best,
> >
> > Harvey
> >
> > P.S. In any event, given the definition of the sequence, shouldn't the
> > offset be changed?
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>
--
Dear Friends, I will soon be retiring from AT&T. New coordinates:
Neil J. A. Sloane, President, OEIS Foundation
11 South Adelaide Avenue, Highland Park, NJ 08904, USA
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com
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