Press space to type a number. Toggle L to see the numbers it jumped to. Toggle S to see the number of steps. The Collatz conjecture: You take a positive integer. If it is even, you divide it by 2. If it is odd, you multiply it by 3 and add 1 Repeat this process until the number is 1. The conjecture is that any positive integer will eventually converge to 1, but this is unproven.
@griffpatch for the list visualizer. Took about 5 minutes to make.