[seqfan] Re: A063116

[Neil Sloane]

David R. said ":The hostname modular.math.washington.edu should be replaced
with wstein.org."

Me: David, thanks!  there were about 245 links, and I've now repaired
almost all of them.  The links that were not repairable I replaced with
references.

Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com



On Wed, Aug 21, 2019 at 9:13 PM David Radcliffe <dradcliffe at gmail.com>
wrote:

> The hostname modular.math.washington.edu should be replaced with
> wstein.org.
> There are quite a few OEIS entries that refer to the old hostname.
>
> On Wed, Aug 21, 2019 at 2:57 PM Neil Sloane <njasloane at gmail.com> wrote:
>
> > You said:
> >
> > "“Dimension of the space of weight 2n cusp forms for Gamma_0(48).”
> >
> > (which means nothing to me...)."
> >
> > Sorry to hear that!
> >
> > Cusp forms are an important subject in number theory.  Part of the theory
> > of modular forms.
> > There are a huge number of books.  You might start by reading Gunning's
> > little Princeton book.
> > It will change your life.  The subject is sometimes referred to as a
> > fairyland of mathematics (with good reason).
> >
> > There are also about 500 other sequences that mention cusp forms.
> >
> >
> >
> > Best regards
> > Neil
> >
> > Neil J. A. Sloane, President, OEIS Foundation.
> > 11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
> > Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
> > Phone: 732 828 6098; home page: http://NeilSloane.com
> > Email: njasloane at gmail.com
> >
> >
> >
> > On Wed, Aug 21, 2019 at 3:39 PM David Sycamore via SeqFan <
> > seqfan at list.seqfan.eu> wrote:
> >
> > > Hello Seqfans,
> > >
> > > The Name of the above sequence says:
> > >
> > > “Dimension of the space of weight 2n cusp forms for Gamma_0(48).”
> > >
> > > (which means nothing to me...).
> > >
> > > Data: 3,18,34,66,82,98,114,130,146,162....
> > >
> > > Can anyone please explain what is meant by the Name? There is a link
> > > entitled “Dimensions of the spaces S_k(Gamma_0(N))” but it leads to a
> > > message saying “Sorry, the website....cannot be found”. Also there are
> no
> > > Comments or examples given.
> > >
> > > A formula a(n)=2(8n-7) is conjectured, which seems to work.
> > >
> > > Unless I am mistaken another possible formula for these terms could be:
> > >
> > > a(n)= A(B(n-1)+1) - A(B(n-2)+1) , for n>1
> > >
> > > Where A is A000217 and B is A016813.
> > >
> > > Any explanation or comments?
> > >
> > > Cheers,
> > >
> > > David.
> > >
> > >
> > >
> > >
> > > --
> > > Seqfan Mailing list - http://list.seqfan.eu/
> > >
> >
> > --
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> >
>
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