[seqfan] Re: A002094 from 1875 needs more terms

Sean A. Irvine sairvin at gmail.com
Thu Mar 22 18:34:27 CET 2018


One thing that impressed me was the number of correct terms that he had
calculated presumably by hand.

On 22 March 2018 at 22:16, Peter Munn <techsubs at pearceneptune.co.uk> wrote:

> Is it possible, though, for someone who understands it to add a comment
> about the sequence's origins and how Schiff saw it? Reading A002094 now,
> it is mathematically much improved, but feels a little divorced from its
> history, and thereby seems to have lost something.
>
> Best Regards,
>
> Peter
>
> On Sat, March 17, 2018 5:08 pm, Hugo Pfoertner wrote:
> > The German in Schiff's article is difficult to understand, but it is my
> impression that at the time of writing the meaning of "alcohol radical"
> was different from the modern use, where it means an "-OH" attached to a
> hydrocarbon.
> > https://www.britannica.com/science/alcohol/Structure-and-
> classification-of-alcohols
> > So perhaps the name of the sequence should be adapted to modern chemical
> terminology and "alcohol" be dropped. The title of Richard's
> illustrations
> > might be a candidate for a less misleading sequence title.
>
> > Schiff 's Hydrocarbons with a Single Ring
>
> > Hugo Pfoertner
>
> > On Sat, Mar 17, 2018 at 5:44 PM, Richard J. Mathar
> <mathar at mpia-hd.mpg.de> wrote:
> >>
> >> In response to http://list.seqfan.eu/pipermail/seqfan/2018-March/
> 018463.html :
> >> As an appetizer I added illustrations for the first few terms
> >> (as far as I understand the compositions) to http://oeis.org/A002094 .
> >>
> >> RJM
>
>
>
>
>
>
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>


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