A simple script that generates svg files with Collatz graphs for any given limit of numbers.

First, make sure you have the latest distribuition of Graphviz installed (check https://graphviz.org/download/ case you don't).

Once you got all done, run it like the following:

py collatz_graph.py -n [the limit number, default is 20] -p [layout mode (check Graphviz docs on it)] 

Running the following from your command line

py collatz_graph.py -n 15 

You should get something like this

Code credits to https://martin-thoma.com/the-collatz-sequence/