[seqfan] Re: Spiral generated from A001045 a(n) = a(n-1) + 2*a(n-2)

Dale Gerdemann dale.gerdemann at gmail.com
Tue Dec 23 12:10:54 CET 2014


Hello Ed, Hello Seqfans,

Yes, it looks a bit like the golden spiral. But I rather doubt that it is
the same since it was generated from a recurrence other than the Fibonacci
recurrence. So I wouldn't expect the golden ratio to play a role.

Dale Gerdemann

On Tue, Dec 23, 2014 at 3:50 AM, L. Edson Jeffery <lejeffery2 at gmail.com>
wrote:

> >Is this perhaps a well known, well studied spiral?
>
> Dale, it looks kind of like the golden spiral:
>
> http://mathworld.wolfram.com/GoldenSpiral.html
>
> Ed Jeffery
>
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