Suppose I write a cellular automaton in which after some complex dance all the white cells are turned dark. This could clearly be art.

Suppose that I write the software to implement this CA, but not display it, just jostle the memory locations. That is still art.

Suppose the rules are such that it is clear that all the on cells will be turned off, with some perhaps complex interactions in between. Then you don't need to run the code to see the art, just read the source.

I think any implementation of Towers of Hanoi is art.