[seqfan] Re: vampire numbers

Max Alekseyev maxale at gmail.com
Sun Dec 28 19:35:57 CET 2008

I object to such renaming. It is always good to have precise
self-contained definition of a sequence.
"Vampire"-terminology would be a nice *addition* to the definition or
a comment but it should not replace what we have now.


On Thu, Dec 25, 2008 at 11:18 AM, Tanya Khovanova
<mathoflove-seqfan at yahoo.com> wrote:
> Hello SeqFans,
> I just wrote an essay about problems with names for vampire numbers:
> http://blog.tanyakhovanova.com/?p=89
> I suggest renaming the corresponding sequences. For example we might
> want to name:
> A080718 Numbers n such that all the digits of the prime factors of n
> exactly match the digits of n.
> --- prime-fanged vampire numbers.
> A014575 Vampire numbers (numbers having more than one pair of fangs are
> listed once for each pair).
> --- double symmetrical fangs vampire numbers.
> A020342 Vampire numbers: n has a factorization using n's digits (e.g.
> 1395 = 31*9*5).
> --- we might keep the name or call them generalized vampire numbers.
> I didn't check if all the sequences I mention in my essay are in the
> OEIS. I would like to clean the naming conventions first, then someone
> can add more sequences if desired.
> Best, Tanya
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