[seqfan] Re: A168237 startup and offset

[Neil Sloane]

Allan, excellent suggestion. I added a(0)=0. Can you upload a new b-file?
Best regards
Neil

Neil J. A. Sloane, President, OEIS Foundation.
11 South Adelaide Avenue, Highland Park, NJ 08904, USA.
Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ.
Phone: 732 828 6098; home page: http://NeilSloane.com
Email: njasloane at gmail.com



On Tue, Feb 2, 2021 at 12:32 AM Allan Wechsler <acwacw at gmail.com> wrote:

> A168237 is the sequence 0,3,3,6,6,9,9,...
>
> Its offset is 1.
>
> It has a clever formula as definition, which boils down the multiples of 3
> repeated, except for 0 which is only stated once.
>
> Can anybody think of a good reason *not* to enhance it by adding A(0) = 0,
> and changing the offset to 0? The clever formula still works, and I think
> all the comments are still true. (I am slightly unsure of the E.g.f.) The
> programs would have to be altered slightly, by somebody who knows
> Mathematica and Magma, but surely the modification would be trivial.
>
> All old searches would still match. And I think the resulting sequence
> would be strictly simpler than what's there now. So that's why I'm asking
> if I'm missing something.
>
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