[seqfan] Re: Is there a limit on number of terms that a b-file can contain?
charles.greathouse at case.edu
Sat Mar 4 23:43:43 CET 2017
For most sequences 10,000 terms is enough. Occasionally 100,000 is
justified. Much larger than that you would need a sequence which is
especially interesting and hard to compute, and generally you would want to
upload a compressed file.
And yes, as Alonso says lines should not be too long -- 1000 characters as
a general rule. Longer than this and you probably shouldn't upload, or at
the least you should upload compressed. But often when numbers are this big
there's a more concise way to represent the numbers and that's a better way
to show lots of terms.
Case Western Reserve University
On Sat, Mar 4, 2017 at 3:59 PM, Neil Sloane <njasloane at gmail.com> wrote:
> A000720 was left in rather a mess, but I have cleaned up the b-file
> and the a-file now.
> Best regards
> 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 Sat, Mar 4, 2017 at 2:11 PM, Alonso Del Arte
> <alonso.delarte at gmail.com> wrote:
> > Although it's not really a concern for A000720, it should also be noted
> > that we have this guideline (almost a rule) that each line of a B-file
> > should have less than 1000 characters. You might be able to upload such a
> > file, but end users might experience glitches.
> > Here's a lot more information about B-files: http://oeis.org/wiki/B-file
> > Al
> > On Sat, Mar 4, 2017 at 2:32 AM, Neil Sloane <njasloane at gmail.com> wrote:
> >> A million terms is too many for a b-file.
> >> For a file that big you should upload an "a-file". The same format,
> >> but call it a000720.txt (say)
> >> There is also a limit on how large a file you can upload. 2 or 3 megs,
> >> Bureaucrats like myself can upload larger files
> >> 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,
> >> Phone: 732 828 6098; home page: http://NeilSloane.com
> >> Email: njasloane at gmail.com
> >> On Sat, Mar 4, 2017 at 1:02 AM, Gaurav Verma <gvermaiitk at gmail.com>
> >> > Dear SeqFans,
> >> >
> >> > I am a new member and I just made my first contribution to A000720 by
> >> > uploading a new b -file. The python program that I wrote to generate
> >> > b-file generated a .txt file with 1,000,000 entries but when I added
> >> to
> >> > the sequence, the MIN...,MAX was automatically updated to 1...823852.
> >> > .txt file still contains terms 1 through 1,000,000 but the one that I
> >> > submitted (by uploading on the OEIS server), somehow has only 823,852
> >> > terms. Is this an expected behaviour?
> >> >
> >> > Thanks,
> >> > Gaurav Verma
> >> >
> >> > Undergraduate Student
> >> > Department of Electrical Engineering
> >> > Indian Institute of Technology Kanpur (IITK)
> >> > Uttar Pradesh, India
> >> >
> >> > --
> >> > Seqfan Mailing list - http://list.seqfan.eu/
> >> --
> >> Seqfan Mailing list - http://list.seqfan.eu/
> > --
> > Alonso del Arte
> > Author at SmashWords.com
> > <https://www.smashwords.com/profile/view/AlonsoDelarte>
> > Musician at ReverbNation.com <http://www.reverbnation.com/alonsodelarte>
> > --
> > Seqfan Mailing list - http://list.seqfan.eu/
> Seqfan Mailing list - http://list.seqfan.eu/
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