[seqfan] Re: Lack-a-day

Olivier Gerard olivier.gerard at gmail.com
Thu Dec 2 19:21:57 CET 2010


Dear Richard,

Every OEIS user is entitled to see the whole entry and for
such an oldie and goodie, there is much to read.

It may be an incorrect link or glitch in the browser you use.

Can you try

http://oeis.org/A007598

<http://oeis.org/A007598>and tell us if you see only the sequence ?


Regards,

Olivier


On Thu, Dec 2, 2010 at 19:13, Richard Guy <rkg at cpsc.ucalgary.ca> wrote:

> Dear all,
>          I'm very discouraged at the way OEIS
> is going.  I suppose it's just the inevitability
> of my old age.  Here is a (final?) contribution,
> though recent experience suggests that no-one
> will take any notice.
>
>          It seems to me (though my Mother always
> told me that I'm not a good looker!) that there
> is nothing under A007598 except the bare sequence.
> Or is that all I'm allowed to see these days?
>
>          It's a divisibility sequence.  It is
> a third order recurring sequence with characteristic
> polynomial    x^3 - 2x^2 - 2x + 1,
>             roots -1, tau^2, 1/tau^2
> generating function  x(1-x)/(1-2x-2x^2+x^3)
>
>          And there must be occurrences in the real
> world?
>
>          Goodbye!  It was fun while it lasted.  R.
>
>
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>
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>



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