aperiodic_tile, a MATLAB code which constructs several steps in the aperiodic tiling of the plane, using the monotile T(1,1), displaying the result graphically, by Henning Voss.
Layers 0 through 3 involve, successively, 1, 9, 71, 559 tiles. Layer 8 uses 16,908,641 tiles and probably represents the limit of usefulness for this implementation.
The information on this web page is distributed under the MIT license.
aperiodic_tile is available in a MATLAB version and an Octave version.