[lux]

I know this isn't exactly the smallest, and is quite large compared to some other entries, but I am entering since this is sort of a unique entry. I used the Wolfram language, which breaks off from both the Python and NodeJS entries.

Also 69 byte master race!

Code:

n=10;While[1!=n,Print[n];n=Part[{n/2,(n*3)+1},Mod[n,2]+1]]; Print[n]

[img]-snip-[/img]

from the input

I don't see you inputting anything.