2 things about the OEIS Welcom Page

Richard Mathar mathar at strw.leidenuniv.nl
Tue Jun 10 20:55:45 CEST 2008


subscription to web pages which implement RSS feeds; these are currently
   href="http://www.research.att.com/~njas/sequences/A000010.xml">
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X-Ids: 164
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Subject: Re: 2 things about the OEIS Welcom Page
Date: Tue, 10 Jun 2008 19:42:39 -0400
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In the real world, this is not the case.

Changes to the numbers in an entry are fairly rare.  Most changes are 
new
formulas, comments, and references.  And, as one might expect, such
changes are more common on the more interesting sequences.

Another point is that one might wish to subscribe to a sequence 
precisely
when only part of the sequence is known, and one wants to be notified
when anything new is found.

Franklin T. Adams-Watters

-----Original Message-----
From: Richard Mathar <mathar at strw.leidenuniv.nl>
...

3) Is such a feature valuable? The OEIS is a database
of numbers; these have been created by God (or someone else) with no 
intend
to be changed rapidly. In the best of all worlds, each sequence is 
created
perfectly (all members of the sequence correct, all dependent sequences
x-referenced, all formulas correct, definition precise and still
human-readable),
and never needs correction. So the OEIS is quite the opposite of a news 
or radio
channel where "high" value might be measured proportional to the 
frequency of
change. The quality of the database contents is in that sense negatively
correlated with the value of any monitoring mechanism/capability: the 
more
static
an entry, the better. (This last remark does not apply to the sequences 
in the
"less,obsc" category which are left untouched just because actually 
nobody
ever looks at them...)

Richard










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