[seqfan] Re: A013538

[Nathaniel Johnston]

There are several similar sequences from the same author in the
range A013521 - A013559. I've tried about a dozen of them, and the only one
where the definition has matched the terms is A013558. Perhaps there is a
clue there?

All the best,

- Nathaniel Johnston


On Fri, Dec 16, 2011 at 3:14 PM, Max Alekseyev <maxale at gmail.com> wrote:

> Yes, something is wrong.
>
> Maple gives:
>
> > series( arcsin( csc(x) - coth(x) ), x, 20 );
> -1/6*x + 53/1296*x^3 + 73/145152*x^5 + 45137/156764160*x^7 +
> 11226497/893931945984*x^9 + 129163393/46352026828800*x^11 +
> 474807665/2402889070804992*x^13 +
> 198247921612319/5903898446967865344000*x^15 +
> 618559606844489/205118300328940693094400*x^17 + O(x^18)
>
> Regards,
> Max
>
> On Fri, Dec 16, 2011 at 11:26 PM, Harvey P. Dale <hpd1 at nyu.edu> wrote:
> >        I cannot generate the terms of this sequence from its
> > definition.  What am I missing?
> >
> >        Best,
> >
> >        Harvey
> >
> >
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