[seqfan] Re: searching on oeis.org for sequences with partial information

[Hugo Pfoertner]

BTW, there is only a single hit matching the given criteria: "1, 30, 30,
900" in http://oeis.org/A165851 . But this is probably not the type of
sequence you are looking for.

On Wed, Feb 10, 2021 at 10:56 AM Hugo Pfoertner <yae9911 at gmail.com> wrote:

> I would recommend writing a small program that can read the "stripped"
> file from https://oeis.org/stripped.gz . For example, looking for a
> sequence beginning 1,30,30 and then for a further term in a given interval
> can be implemented with just a few lines of code.
>
> Hugo
>
> On Wed, Feb 10, 2021 at 3:03 AM Sean A. Irvine <sairvin at gmail.com> wrote:
>
>> It's not perfect, but one way to achieve what you are after is to first
>> search for "1, 30, 30".
>>
>> Choose any of the results, then use the "Sequence in context" links to
>> scan
>> along until you reach a(4)>500.
>>
>> Sean.
>>
>>
>> On Wed, 10 Feb 2021 at 13:52, andre maute <andre.maute at gmx.de> wrote:
>>
>> > Hello list,
>> >
>> > I have sometimes the following problem when doing some type of
>> enumeration.
>> > I wonder if there is already a feature on oeis.org which would help
>> here.
>> >
>> > Suppose you have written a program generating
>> > a sequence A(n), which does some intermediate (debug) output.
>> >
>> > The computation of the A(n) gets slower and slower with the next n,
>> > but due to the availability of the intermediate output it is possible
>> > to extract perhaps some lower bound for a particular A(n).
>> >
>> > So you have e.g.
>> > A(1) = 1, A(2) = 3, A(3) = 30, A(4) > 500
>> >
>> > Would it possible to use this information, for an oeis.org search?
>> >
>> > For this sequence I would like to enter:
>> > "1, 3, 30, >500"
>> >
>> > Best Regards
>> > Andre
>> >
>> > --
>> > Seqfan Mailing list - http://list.seqfan.eu/
>> >
>>
>> --
>> Seqfan Mailing list - http://list.seqfan.eu/
>>
>