Check out this really amazing animation artwork done through a web interface to the ContextFree.js library created by Aza Raskin, a port of the open source application by Chris Coyn. It provides means of creating beautiful generative art with minuscule amounts of code. Make sure you watch it to the end where the Sierpiński triangle is generated with 3 lines of code.
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You can view more- or create your own art with Algorithm Ink.