Jamie Morken on Mon, 04 Nov 2019 01:08:04 +0100


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Re: Pari programs on oeis, accessing internal calculatios



Hi,

For an example, since it is a general idea and not pari specific,
for the sequence a(n)=n*n! for 1<n<10, there are three sequences
that have equal lengths, ie, n, n!, n*n!

For any pari program on OEIS, I was wondering if it could be possible
to break down the pari program to access the sequences that are
used to create the overall a(n) sequence, including numerators and
denominator sequences of rational numbers.

The main goal I was considering is to find as many sub-sequences
for each oeis sequence as possible, and then build a graph data structure
that shows links between different oeis sequences, based on shared
subsequences.

cheers,
Jamie



----- Original Message -----
From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
To: pari-dev@pari.math.u-bordeaux.fr
Sent: Sun, 03 Nov 2019 06:45:26 -0700 (MST)
Subject: Re: Pari programs on oeis, accessing internal calculatios

On Sun, Nov 03, 2019 at 04:06:14AM -0700, Jamie Morken wrote:
> Hi,
>
> For a pari program on an oeis sequence which generates a sequence for a(n),
> is there a way to access the internal calculations of the pari program
> to generate equal length integer sequences a1(n), a2(n), etc..
>
> I asked a similar question for mathematica
>
> https://mathematica.stackexchange.com/questions/206854/accessing-internal-calculations-of-mathematica-code

Could you give us an example ?
What are "equal length integer sequences" ?

Cheers,
Bill.