[seqfan] Re: Bad pdf file in A002369?

jnthn stdhr jstdhr at gmail.com
Sat Feb 24 16:29:02 CET 2018


Thank you to all who responded.  I just tried the download again and it
still fails.  It must be the UC browser I am forced to use on this
"ancient" android.

Sean Irvine kindly sent me an image of the contents, which now leads me to
the question, did J . Devisme neglect to count a ninth folding for n = 4?

Yesterday I sent a message to the list (not yet posted) describing a very
similar sequence.  My sequence, 1,2,3,9,20,58,..., first differs at n = 4.
In the illustrations found in A002369, if you look at the third
construction from the left in the bottom row (a single rectangle atop two
that are atop a single), I shift one of the single rectangles to the right
to obtain a ninth construction.  My sequence uses partitions of n as a
basis for finding unique constructions of n rectangles, so maybe this leads
to a different sequence.

Jonathan
On Feb 24, 2018 3:45 AM, "Arie Bos" <arie.0.bos at gmail.com> wrote:

> Found same title with other author here https://cms.math.ca/10.4153/
> CJM-1950-035-6
>
> Arie Bos
>
> > -----Original Message-----
> > From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Hugo
> > Pfoertner
> > Sent: zaterdag 24 februari 2018 08:55
> > To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
> > Subject: [seqfan] Re: Bad pdf file in A002369?
> >
> > Web search only finds one copy at Stanford:
> > https://searchworks.stanford.edu/view/1849836
> >
> > On Sat, Feb 24, 2018 at 8:36 AM, Brendan McKay
> > <Brendan.McKay at anu.edu.au>
> > wrote:
> >
> > > Here is a more detailed bibliographical citation.  It is an article in
> > > a conference proceedings.
> > >
> > > Jacques Devisme. Contribution a l'étude du problème des timbres-poste.
> > > Comptes-Rendus du Deuxième Congrès International de Récréation
> > > Mathématique, Paris, 1937. Librairie du "Sphinx", Bruxelles, 1937, pp.
> > > 55-56.
> > >
> > > I don't have it.
> > >
> > > Brendan.
> > >
> > >
> > >
> > > On 24/2/18 6:14 pm, Hugo Pfoertner wrote:
> > >
> > >> The downloads of both files work, but there is another problem. The
> > >> scanned copy of the article is almost unreadable and even applying
> > >> the usual tricks in image restoration (gamma curve, contrast,
> > >> sharpening filters, etc.) don't produce a satisfactory result. The
> > >> main problem is the image format Neil had used, which seems to have
> > >> been jpeg. This produced the well known artifacts of "Fourier
> > >> blocks". Assuming Neil's archive is well organized, I'd like to ask
> > >> him if he can redo the scan and use a better suited image format for
> > >> storing (e.g. gif or png)? Also Adobe Acrobat has a scan function
> > >> producing "clean" results.
> > >>
> > >> Hugo Pfoertner
> > >>
> > >> On Sat, Feb 24, 2018 at 5:13 AM, Alonso Del Arte <
> > >> alonso.delarte at gmail.com>
> > >> wrote:
> > >>
> > >> It works fine for me, I tried it in Firefox and Opera under Windows 8.
> > >>> What
> > >>> browser and operating system are you using, Jonathan?
> > >>>
> > >>> Al
> > >>>
> > >>> On Fri, Feb 23, 2018 at 9:35 PM, Sean A. Irvine <sairvin at gmail.com>
> > >>> wrote:
> > >>>
> > >>> The download works for me.  It is a single page PDF.
> > >>>>
> > >>>>
> > >>>> On 24 February 2018 at 06:31, jnthn stdhr <jstdhr at gmail.com> wrote:
> > >>>>
> > >>>> When I try to download "Illustration of initial terms" from
> > >>>> A0002369 it
> > >>>>> fails.  Is this my problem or a bad file?
> > >>>>>
> > >>>>> Jonathan
> > >>>>>
> > >>>>> --
> > >>>>> Seqfan Mailing list - http://list.seqfan.eu/
> > >>>>>
> > >>>>> --
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> > >>>>
> > >>>>
> > >>>
> > >>> --
> > >>> Alonso del Arte
> > >>> Author at SmashWords.com
> > >>> <https://www.smashwords.com/profile/view/AlonsoDelarte>
> > >>> Musician at ReverbNation.com
> > >>> <http://www.reverbnation.com/alonsodelarte>
> > >>>
> > >>> --
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> > >>>
> > >>> --
> > >> Seqfan Mailing list - http://list.seqfan.eu/
> > >>
> > >
> > >
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> > >
> >
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>
>
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