[seqfan] Re: submitting sequences with sets as terms

[Alonso Del Arte]

If each set has the same number of terms, then it probably gets split off
into a few different sequences (e.g., the Pythagorean triples, see A046090
for one example).

If each set has one more term than the previous set, then we're dealing
with a number triangle and it gets keyword:tabl.

And if the size of each set varies seemingly without a pattern, then it's
an "irregular table" and gets keyword:tabf. As a matter of fact, it's a
sequence of prime factors which
http://oeis.org/wiki/Clear-cut_examples_of_keywords gives as an example for
tabf.

Al

On Sat, Mar 21, 2015 at 3:26 PM, Bob Selcoe <rselcoe at entouchonline.net>
wrote:

>
> Hi Seqfans,
>
> I was hoping for some clarification about submitting sequences with sets
> as terms.
>
> For instance, the sequence of prime factors of A098550(n) n>1 is  {2}, {3}
> {2}, {3}, {2}, {3,5}, {2,7}, {5}, {2,3}...
>
> Is there a preferred format for such sequences?
>
> Thanks in advance,
> Bob Selcoe
> PS - is there a page on the site which addresses this? I couldn't find it
> from the OEIS Wiki page.
>
> _______________________________________________
>
> Seqfan Mailing list - http://list.seqfan.eu/
>



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Alonso del Arte
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