[seqfan] Re: Forcing of exact searches?

Frank Adams-watters franktaw at netscape.net
Fri Aug 9 07:54:04 CEST 2019

You can search for "signed:" e.g. "signed:1,-1,1" This solves Peter's problem, although not the more general one.

Franklin T. Adams-Watters

-----Original Message-----
From: Peter Munn <techsubs at pearceneptune.co.uk>
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Sent: Thu, Aug 8, 2019 11:15 pm
Subject: [seqfan] Re: Forcing of exact searches?

I don't know how easy it would be to provide, but I offer this other
example of when a "raw" search option would be useful. There are 70 to 80
sequences that consist only of "1"s and "-1"s and I know no way to make
the search distinguish the two values, making it more difficult to find
such a sequence, and even more awkward to be sure such a sequence is

Best Regards,

On Thu, August 8, 2019 9:28 pm, Giovanni Resta wrote:
> I did encounter the same problem many times and I tried a few variations
> but it seems there is not an "exact" search.
> For example, I was looking  for powerful (A001694) numbers but since
> "powerful" is translated to "power" I got thousands of results: I had to
> enter a search like 4, 8, 9, 16, 25, 27, 32, 36, 49, 64, 72 to find the
> actual sequence.
> A simple search of a fixed string would be very useful.
> Il 07/08/2019 09:57, Hugo Pfoertner ha scritto:
>> SeqFans,
>> is there a method to force "exact" searches for words?
>> A search
>> https://oeis.org/search?q=%22factorization%22+keyword%3Ahard&sort=&language=&go=Search
>> produces 922 hits, because the occurrence of "factor" also produces a -
>> in
>> my case unwanted - match.
>> I can not see that the search hints https://oeis.org/hints.html deal
>> with
>> this problem.
>> Hugo
>> --
>> Seqfan Mailing list - http://list.seqfan.eu/
> --
> Seqfan Mailing list - http://list.seqfan.eu/

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