[seqfan] Re: A055387

[Tom Duff]

Sure, but the fix to the description is silly, something like "Prime
numbers, some non-trivial permutation of whose decimal digits is also
prime. Also 2, 3, 5, 7 and 11." This is an instance of a general
strategy for fixing the descriptions of sequences with extra erroneous
terms. But it would be an embarrassment to have OEIS peppered with
descriptions like this. We already have a well-sanctioned way to deal
with the problem, and that's keyword "dead". The right thing to do is
to acknowledge the error, not try to paper it over.

On Thu, Jan 19, 2023 at 7:26 AM Allan Wechsler <acwacw at gmail.com> wrote:
>
> In this case, though, it is in fact easy to tweak the given description so
> that it matches the data perfectly. Is that not the least disruptive fix?
>
> On Thu, Jan 19, 2023 at 6:02 AM Neil Sloane <njasloane at gmail.com> wrote:
>
> > Our rule is that if the sequence has only been in the OEIS for about a year
> > or less, we recycle the A-number, but for older entries we keep the entry
> > and add the keyword "dead".  This makes sense because otherwise there would
> > be huge numbers of dead entries. We keep a public record of this action
> > on the OEIS wiki in the file called "
> > https://oeis.org/wiki/Deleted_sequences".
> >  Take a look at it!
> >
> > We do take our custodial duties very seriously.
> >
> > Best regards
> > Neil
> >
> > Neil J. A. Sloane, Chairman, OEIS Foundation.
> > Also Visiting Scientist, Math. Dept., Rutgers University,
> > Email: njasloane at gmail.com
> >
> >
> >
> > On Wed, Jan 18, 2023 at 7:19 PM Marc LeBrun <mlb at well.com> wrote:
> >
> > > "The OEIS is an archive, and the first principle of archives is
> > > permanence."
> > >
> > > Heh, except that the OEIS recycles A-numbers -- probably not a "best
> > > practice", but NJAS has pragmatic reasons for doing it (for one, not
> > > causing big gaps in the sequence when a batch of recently proposed
> > > sequences gets rejected) so I guess we'll just have to live with it.
> > >
> > >
> > > --
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> > >
> >
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> >
>
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