Riddle me this.

[DeckMaster]

What row of numbers comes next?
This is a tough one!
1
11
21
1211
111221
312211
13112221
:P

[13lackShadow]

This is easy Amp. The next line describes the line before it. For example the last 2:

312211
13112221 - theres one 3, one 1, two 2s, two 1s in the line above so the
numbers describing this line will be

1113213211 - one 1, one 3, two 1s, three 2s, one 1 -> 8)