ordered
no repetition
n!
n:
ordered
no repetition
n!/(n - k)!
k:
ordered
repetition allowed
n
^{k}
unordered
repetition allowed
(n + k - 1)!/((k!(n-1)!)
unordered
no repetition
n!/(k!(n - k)!)

**Note**: This Javascript program is taken from the website CCCC Collatz Conjecture Calculation Center by Klaas Ijntema

- A downloaded program is for personal use only.
- You are allowed to present it on your homepage.
- Visitors to your homepage should not be able to copy it from your site (with simple means).

*Last updated: November 2010*