[seqfan] Re: Primes embedded
Charles Greathouse
charles.greathouse at case.edu
Fri May 7 20:23:15 CEST 2010
I use the rule of thumb that a sequence should take at least an hour
to prepare. If you're spending less than that, your sequence may not
be interesting enough for the OEIS. Of course it's not hard to go
well beyond that: reading results in the literature, writing programs
to find terms, searching for appropriate cross-references and Index
entries... all told, I probably average about 5 hours to submit a
sequence.
But I don't have a problem with asking for help on submitting a
sequence, especially if English is not one's native language.
> The OEIS policy has been to include all the sequences that we think might be interesting to even one other person
I wonder if there's a good way to quantify that.
Charles Greathouse
Analyst/Programmer
Case Western Reserve University
On Fri, May 7, 2010 at 1:58 PM, Michael Porter <ic_designer at verizon.net> wrote:
>
>>> This
>>> is exacerbated by
> requesting others do the work of
>>> composition, description
>>>
> and submission.
>
> I agree to this - if you don't think your sequence is important enough to spend your time preparing it for submission, that's a pretty good indicator that it's not important enough to be in the OEIS.
>
> As for the rest of the post, I'm going to disagree. There are a lot of people that use the OEIS, and they are all interested in different types of sequences. The OEIS policy has been to include all the sequences that we think might be interesting to even one other person using the OEIS. So maybe you find this sequence uninteresting, but there are others who work with this kind of sequence that don't.
>
> - Michael
>
>> --- On Thu, 5/6/10, Marc LeBrun <mlb at well.com> wrote:
>>
>>> From: Marc LeBrun <mlb at well.com>
>>> Subject: [seqfan] Re: Primes embedded
>>> To: "Sequence Fanatics Discussion list" <seqfan at list.seqfan.eu>
>>> Date: Thursday, May 6, 2010, 11:40 AM
>>> > a(n) > a(n-1) and a(n) is the
>>> smallest available composite
>>> > embedding the smallest not yet embedded prime:
>>> >
>>> >
>>> S=12,30,35,57,110,130,170,190,230,290,310,370,410,430,447,453,...
>>> > p= 2 3 5 7 11 13
>>> 17 19 23 29 31 37
>>> 41 43 47 53 ...
>>> >
>>> > Could please someone compute a hundred terms or so,
>>> rephrase
>>> > my definition in good English, coauthor and submit (if
>>> of
>>> > interest)?
>>>
>>> Seqfans, please, can we show a little more common sense and
>>> restraint?
>>>
>>> Forgive me if I've not yet drunk enough coffee this morning
>>> to attain a
>>> sufficiently indulgent frame of mind, and I don't mean to
>>> pick on anyone
>>> personally, but these kinds of submissions are alarmingly
>>> on the increase.
>>>
>>> I feel compelled to suggest they seem to be the epitome of
>>> "uninteresting".
>>>
>>> I've always supported a highly permissive filter for OEIS
>>> submissions. But
>>> merely playing with strings of decimal digits is decidedly
>>> NOT interesting.
>>>
>>> Nor does alluding to the "primes" contribute any interest
>>> whatsoever, since
>>> it might equally as well have been Fibonacci numbers,
>>> powers of 69, Seqfan's
>>> IP addresses, or any other arbitrarily chosen digit-pattern
>>> match.
>>>
>>> The OEIS is intended to be an encyclopedia of INTEGER
>>> sequences, not an
>>> encyclopedia of peculiar [1] TEXT fragments subject to
>>> geeky gematria [2].
>>>
>>> Spewing these kinds of sequences really feels like a very
>>> unkind imposition
>>> on everyone's time and attention (especially Neil's
>>> (especially now)). This
>>> is exacerbated by requesting others do the work of
>>> composition, description
>>> and submission.
>>>
>>> Worst of all, such sequences permanently dilute, if not
>>> pollute, the value
>>> of the OEIS, making it harder for users to get meaningful
>>> results from
>>> queries, and harder for programs to compute truly
>>> interesting relationships.
>>>
>>> It's like flooding the Louvre with zillions of sketchy
>>> kindergarten finger
>>> paintings. There's enough room so that submissions
>>> need not be anything
>>> near masterpieces, but surely better impulse control could
>>> be exercised?
>>>
>>> Respectfully yours,
>>> --MLB
>>>
>>> ========
>>> Notes:
>>>
>>> [1] Consider: interpreting the elements of OEIS sequences
>>> straightforwardly
>>> as integers is lucid. But precisely specifying them
>>> as text reveals such an
>>> alternative definition would be ludicrous. Those
>>> truly interested in the
>>> "Online Encyclopedia of <Finite Non-empty Strings
>>> Comprised of Either Just
>>> the Single Character 'Zero', or a Single Non-zero Digit
>>> Character Followed
>>> by Any Number of Digit Characters, Including None>
>>> Sequences" are of course
>>> free to create and maintain "the
>>> OE<FNSCEJSCZSNDCFANDCIN>S". But this isn't
>>> the charter of the OEIS.
>>>
>>> [2] "Gematria... a system of assigning numerical value to a
>>> word or phrase,
>>> in the belief that words or phrases with identical
>>> numerical values bear
>>> some relation to each other, or bear some relation to the
>>> number itself..."
>>> --Wikipedia
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>>
>>> Seqfan Mailing list - http://list.seqfan.eu/
>>>
>>
>>
>>
>>
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