Ackermann Blocks

The size of the block piles represent equations using the Ackermann function A.
For example, when the piles are [2, 1, 1, 1], that represents A(2, A(1, A(1, 1))).
The default settings show A(3, 1) reducing to 13.

About the Ackermann Function
Space : Step    P : Play/Pause    R : Restart
<= : Slower    => : Faster