To create the cartwheel tilings, start with the ace.
Then
inflate repeatedly. Recall that inflation is a decomposition followed by
an enlargement,
in this case by a factor of the golden ratio. An illustration,
without the enlargement, i.e. a decomposition.
In each of these tilings, there is only
one symmetry, namely a reflection through a vertical axis. With a little
trimming, C2 ,
C4 , C6 , have 5-fold
rotational symmetry as well if the whole patch, rather than the individual tiles
is considered.
Note also that the odd patches are upside-down in
the even cartwheels.
The even patch C2n is called a Cartwheel of order n.
By the Extension Theorem, there is a cartwheel tiling of the plane that
contains each smaller cartwheel in a concentric fashion.