Wayne,

Yes exactly, but as I said "only as a first step in exploring recursive patterns"
I have updated my earlier post with link to your posted image.

Brian,
Yes exactly! "Nesting of loops".

WN,
Welcome & thanks for the attachments.
They are not what I'm looking for, but I hope these are the first of many posts
of your node experiments - playing with nodes.

Thanks to all of you,
Have a great weekend,
James
https://www.instagram.com/nodeology/