[seqfan] Re: Need help with puzzling sequence A118980

Peter Munn techsubs at pearceneptune.co.uk
Wed Aug 14 00:45:14 CEST 2019

On Mon, August 12, 2019 11:33 pm, Neil Sloane wrote:
> By looking more carefully at Richard Mathar's work from 2011, I
> was able to straighten out the mess.
> There is a new sequence A309220 that replaces the missing "A118979",
> and A118980 is now well-defined and edited. Ditto for A118981.

A quick postscript, and Neil may have already taken this into account: I
just searched for [example:1,5,18,36,34] and got both the new sequence and
A117938, another Gary Adamson sequence from 2006, with the same table but
with an extra column/row. All the way since A118980 revision #1 it has had
a CROSSREF Cf. ..., A117938,... although A118980 made no other reference
to A117938.

Could A117938 have led to the original A118979 being considered unnecessary?


Also, in reply to
> On Mon, Aug 12, 2019 at 6:21 PM Fred Lunnon <fred.lunnon at gmail.com> wrote:
>> What I intended to say was that I suspect the author made an elementary
>> error right at the top of the table: it should have commenced

I found R. J. Mathar's comment in A117937 about the author's "definition
of binomial transforms" informative.

Best Regards,


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