Each generation corresponds to some fixed value of R, so let us try the simulation with some small radius. Our previous discussion shows that if R is small enough, only layers of type 3 occur; this situation has been represented in Figure 10a (only one sheet of each layer is visible) and Figure 10b (the two sheets are visible). Now increasing the starting value of the radius of the first generation of circles R, some FCD of type 2 are visible for the first generation (see Figure 10b).