[seqfan] Re: Diesis reference needed (A046103 and A046104)

[Olivier Gerard]

The article should mention the most common uses in mathematics
such as

# as an operator for "count of", "cardinal of".

0^#  in set theory

and

f^#  in algebraic geometry



On Mon, Jul 30, 2018 at 7:14 AM Chris Thompson <cet1 at cam.ac.uk> wrote:

> Trawling around in OEIS (OK, I was putting in birthday-related numbers!)
> I came across A046103-4 and followed the link to
>
>   http://mathworld.wolfram.com/Diesis.html
>
> for an explanation. Sadly, this gives only a reference to the typographic
> meaning, rather than the musical one, so it really needs replacing. There
> is a reasonable Wikipedia article at
>
>   https://en.wikipedia.org/wiki/Diesis
>
> but maybe someone can suggest a better one.
>
> --
> Chris Thompson
> Email: cet1 at cam.ac.uk
>
>
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