[seqfan] Re: Claude Lenormand and raboter(n)

[Andrew Weimholt]

A318921(A175046(n)) = A001477(n)   :-)

Andrew

On Sat, Sep 8, 2018 at 10:22 AM Neil Sloane <njasloane at gmail.com> wrote:

> Dear Seq Fans,
>
> I came across an unpublished article by my old friend Claude Lenormand,
> which led me to a new French word (raboter) and a new sequence, A318921.
> (He was at the eparty for 100000 sequences - you can see his picture there)
>
> He contributed a lot to the OEIS around 2001-2003, but I suspect he is
> no longer with us. His email does not answer.
> The response from the remote server was:
> 550 5.2.1 This mailbox has been blocked due to inactivity
>
> Did any of you know him?
> A318921 sounds pretty good: it could be a dirge for his memory.
>
> One could apply the transformation n -> A318921(n) = raboter(n) to
> any sequence. I created two examples, A319922 and A318923 (Fibonacci
> and primes).
>
> Some time I will scan his article, and add it to A318921.
>
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