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

[Hugo Pfoertner]

If instead of Sean's 1, 30, 30, the numbers given by the OP 1, 3, 30 are
used, the list becomes significantly longer (4 th term in range 500 ..
1000):
A007019, A064352, A080527, A082879, A092677, A144739, A177449, A184575,
A184900, A186941, A203415, A274797, A300617, A319940, A327021, A338278.
Copied from screen output; no guarantee for absence of typos or
completeness.

On Wed, Feb 10, 2021 at 11:06 AM Hugo Pfoertner <yae9911 at gmail.com> wrote:

> 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/
>>>
>>