[seqfan] Re: Looking back at your earliest sequences

Susanne Wienand susanne.wienand at gmail.com
Tue Mar 12 15:07:18 CET 2013


Hello Al,

I'm rather pleased than surpised that others improved the sequences which I
submitted (A194595...). They added graphs, tables, code which fits for the
OEIS...
Moreover, I got useful hints.
Peter Luschny found the descriptive name of 'meander' for the kind of
curves the sequences count. He helped me to formulate a definition for this
kind of meander and suggested to plot meanders. It was because of a plot
that I found an error in the name of the sequences and could correct it.
So most important for me was the improvement of the entries. Certainly
connections to other sequences are also very pleasant.

Regards, Susanne


2013/3/12 Robert Munafo <mrob27 at gmail.com>

> On Mon, Mar 11, 2013 at 4:59 PM, Alonso Del Arte <alonso.delarte at gmail.com
> >
>  wrote:
>
> > I was thinking about the requirements to join SeqFan, and this line of
> > thought led me to the question:
> >
> > Looking back at the earliest sequences you submitted to the OEIS, which
> > ones are you most pleasantly surprised to see others follow up on?
> >
>
> Hmmm...
>
> The early ones (like A006881, A006877, A006878, A006882, A006883, and
> A006886) seem to have gotten the most follow-on response, based on the
> number of ASCII characters in their internal format. But that's because
> they are (mostly) sequences of general interest, so I would *expect* them
> to get a lot of response.
>
> In my case, that would be A100827, the highly cototient numbers. I believe
> > it was in 2006 I became aware of Will's comment regarding the connection
> to
> > the primorials. But it wasn't until just now that I noticed Tony's 2010
> > comment regarding the connection to A082917, even numbers that can be
> > written in more ways as a sum of two odd primes than any smaller even
> > number. I'll have to study A082917 in greater detail.
> >
> > What about the rest of y'all?
> >
>
> My sense of pleasure comes more from the sense of accomplishment from my
> own work, not from the response of others. For example, I felt a great
> sense of accomplishment from computing many terms of A006877,
> A006878, A006884 and A006885 on my Apple ][ microcomputer. I wrote the
> terms on paper and sent them to Neil 10 years later. I guess it was also
> rewarding when I learned that Neil had decided to include them in his
> (second) book, but I think the Apple ][ programming effort and the act of
> discovering the information somehow felt better overall.
>
> The same is true for my recent work, such as A005646 (which isn't "mine",
> but is mainly the product of my work along with that of Andrew Weimholt and
> Franklin T. Adams-Watters), because I worked on it for a month and did a
> lot of cool multi-CPU parallel programming optimizations.
>
> --
>   Robert Munafo  --  mrob.com
>   Follow me at: gplus.to/mrob - fb.com/mrob27 - twitter.com/mrob_27 -
> mrob27.wordpress.com - youtube.com/user/mrob143 - rilybot.blogspot.com
>
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