[seqfan] Re: Same sequences

Alonso Del Arte alonso.delarte at gmail.com
Sat Nov 28 04:33:38 CET 2009


It seems A168415 has been removed, as should be any such duplicate. And
maybe A168414 deserves the keyword "less." But I would hope there would have
to be some extraordinary circumstances to delete something without asking
the author to clarify what he meant.

Al

On Fri, Nov 27, 2009 at 9:48 AM, Alois Heinz <heinz at hs-heilbronn.de> wrote:

> Paolo Lava schrieb:
> > Hello Seqfans,
> >
> > Is it possible to create an "authomatic deletion procedure" in order to
> > avoid the duplication of the same sequence?
> >
> > e.g. A168414 & A168415
> I do not see any reason for any of the sequences to be listed in the OEIS.
> And the author gives us no reason and no explanation, information or
> inspiration.
>
> The sequence seems arbitrary and it is very simple, the given
> recursive formula is too complicated.
>
> "a(n)=9*n-a(n-1)-6 (with a(1)=6)" is the same as
>
> "a(n)=9*floor((n+1)/2)-3" which is easier to understand and to evaluate.
>
> I can not imagine who would do a search on
> 6, 6, 15, 15, 24, 24, 33, 33, 42, 42, 51, 51, 60, 60, ...
>
> At least the keywords should be a combination of dumb,less,easy
>
> There are more new sequences like these, e.g.:
> A168411|A168413|A168416|A168418|A168419|A168420
>
>
> Alois
>
>
>
>
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