T42

Figure: Up to the ninth generation, the evolution of arbitrarily large triangles can be arranged, by following out paths in the de Bruijn diagram governing evolution into the constant 1. The nucleus of the diagram for nine generations of evolution is empty, meaning there is nothing for the tenth generation. However, it is acyclic with width 44, so that limited T's, up to and including T42's, can still be be formed. (figure courtesy J. C. Seck Touh Mora)

May 15, 2002