[seqfan] Re: Display of triangular arrays with a cap.
Neil Sloane
njasloane at gmail.com
Sat Jul 21 19:33:36 CEST 2012
The "extended keyword" idea - such as tabl(A123456) - is on the list of
improvements that Russ is planning to make
Neil
On Sat, Jul 21, 2012 at 11:02 AM, Maximilian Hasler <
maximilian.hasler at gmail.com> wrote:
> > I just was confused again while looking at:
> >
> > http://oeis.org/A091913
> >
> > The definition and the data are correct, the display of all
>
> I disagree, nowhere in the definition it is made clear that and why
> the line n=0 goes up to k=n while from n=1 on they are restricted to k
> < n.
> BTW since the range of k depends on n it would be much more
> understandable if inequalities would be written as k<n and not n>k.
>
> I'll suggest some edits in this sense an encourage others to do the same.
>
> The solution to the more general question is not keyword "tabl0" but
> an extended keyword, here : tabf / tabl(A028310), giving the row
> lengths via another sequence (while the offset of the 2-dim sequence
> gives the number of the initial row.
> I try to promote since several years, and it is a rather quick hack
> (formally robust and "backward compatible") to implement it
> (as Wolfdieter Lang and others, including myself, have done it since
> many years).
>
> Maximilian
>
>
> > tables is wrong and misleading. So all one can do now is to replace
> > the 'tabl' keyword by 'tabf'. On the other hand there is nothing funny
> > about theses tables and one certainly want to see the triangle
> > and the other table formats by just ignoring the first item of the
> > sequence.
> >
> > The problem can obviously be easily solved: If the keyword 'tabl0'
> > is given the first entry of the data is to be suppressed before
> > the data is forwarded to the formatter.
> >
> > Peter
> >
> > _______________________________________________
> >
> > Seqfan Mailing list - http://list.seqfan.eu/
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>
--
Dear Friends, I have now retired 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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