Collatz sequence: Take any positive integer n. If n is even, divide it by 2 to get n / 2. If n is odd, multiply it by 3 and add 1 to obtain 3n + 1. Repeat the process indefinitely.
Collatz conzecture states that
Collatz sequence eventually reach 1 for all positive integer initial values
In this repo, there are programs to generate and play with collatz sequence.