I would be happy to be advised of additional ones. From Pascal's Triangle . Iterated Function Systems . The Chaos Game is an entertaining introduction into this coding. L-Systems have originally been known as recursive sets.
Objects are combinations of linear segments.
In the manner of Cantor's set construction, start with a triangle. Split it into smaller four by its three midlines. Barycentric coordinates . 1-dimensional automata . At discrete times, cells transition depending on their kind and the kind of their immediate right neighbors.