Collatz Conjecture

This is a fairly easy one, most should be able to complete since it is well know. It goes like this:

1. take a number,
   1. half it if it is even, but
   2. if it’s odd you multiply by three and add one.
2. It should return one at the end.

Create a program that can calculate the sequence for all n > 0 to 10000 (or 100000 (slo))