[seqfan] Re: Number of orders of distances to vertices of n-dimensional cube

[Max Alekseyev]

This sequence is clearly missing in the OEIS - please add it.

I don't have an answer to "how to compute hyperplane arrangements" as my
code relies on the existing functionality in Sage.
To get some insight you may check Sage documentation at
https://doc.sagemath.org/html/en/reference/discrete_geometry/sage/geometry/hyperplane_arrangement/arrangement.html

Regards,
Max


On Tue, Nov 15, 2022 at 5:40 AM Pierre Abbat <phma at bezitopo.org> wrote:

> On Monday, November 14, 2022 10:15:47 PM EST Max Alekseyev wrote:
> > Hi Pierre,
> >
> > The next term is 5376 as computed by this quick'n'dirty Sage code based
> on
> > hyperplane arrangements:
> > https://sagecell.sagemath.org/?q=gbndab
> >
> > It may also be possible to compute a(5) but not online.
>
> Thanks! That doesn't match any of the sequences beginning 1,2,8,96, but
> when I
> divide by 2^n and chop off the 0th term, it matches two entries. A325756
> looks
> unlikely as the next term is only 360, but A088229 looks likely. Is that
> the
> right sequence?
>
> How can I compute hyperplane arrangements?
>
> Pierre
>
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>
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>
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