Dear Tom Karzes , For those polyhedra that you mention, some of the coordination sequences are too short (like 1 3 3 1 for the cube) or too similar to other sequences; and some of the others, the easier ones, I have done by hand, but I haven't done them all - and I would certainly like to get them. Maybe the simplest way to do this would be for you to do them all (more-or-less! - if there are infinite series like the prisms then just do the first handful), and send them to me, and I'll make the decision about which ones are too short, etc., and then I will add the ones I don't have to the OEIS (giving you credit of course) I'm glad you suggested this - it is something that has needed doing for a long time. And don't feel that you need to restrict this to the classical solids that you mentioned. Non-convex solids are also worth doing, even solids with holes. That is opening up a large can of worms, of course - so if other folks want to help then by all means join in. I remember that many years ago Tom Duff (on this list) had a catalog at Bell Labs of a great many solids and their properties. I still have the TM somewhere. Best regards Neil Neil J. A. Sloane, President, OEIS Foundation. 11 South Adelaide Avenue, Highland Park, NJ 08904, USA. Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ. Phone: 732 828 6098; home page: http://NeilSloane.com Email: njasloane@gmail.com On Mon, Jan 6, 2020 at 3:22 PM Tom Karzes <karzes@sonic.net> wrote:
Neil, do you have coordination sequences for all of the Platonic/Archimedean/Catalan solids? Those seem like the most fundamental ones for polyhedra. I could probably generate them without too much trouble if needed.
Tom
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