I can't seem to find a question I need. Find the next number in this sequence:
1
11
21
1211
111221
312211
13112221
??????????

I KNOW that it is the list of perfect squares ending on 1, but I can't find the answer.Anyone care to help mwa?
I'd appreciate it, thanks... :)

that reminds me of binary code.. except it has 3's and 2's but no 0's. binary code is very confusing! </randomness>

i'm trying to figure it out, but it might take me a while. i'll get back to you :D

If I'm doing it right, the next number is:
1113213211

Each number is just explaining how many numbers are in the number before it. So the number one has one '1', so the next number is 11. The number 11 have two '2's, so the next number is 21, and so on. Does that make sence?

I could be wrong though, but it works out, it doesn't involve much math though.