Classy.
I really enjoyed the use of numbers in this, 'twas a far more creative way to break up an animation rather than just divulge into the math itself.
The animation was smooth, especially for such dis-portioned characters, that made this animation so unique. The fluency was a key factor to this, as it allowed the flow of the number diagram to be visually expansive.
The background music worked with such minimalist style, great work.