[seqfan] Re: A sequence from Johannes Kepler's "Harmonices Mundi"

[Kevin Ryde]

peter.luschny at gmail.com (Peter Luschny) writes:
>
> Johannes Kepler's "Harmonices Mundi" (1619, volume=III, page=27)

Another bit on this tree (rediscovering, maybe, probably),

  Brian A. Benson, "On Using (Z^2,+) Homomorphisms to Generate Pairs of
  Coprime Integers", 2008.  http://arxiv.org/abs/0802.0547