Old-school math puzzle
Alright so I heard this one back in 8th grade on a rainy day in math. It is a fun one and it has been a while since I shared it. To make things interesting I will offer a small bounty in Doge to whoever solves the puzzle first. To qualify, submit your answer in comment form along with a Doge address of your choosing. There is no time limit but I will allow at least 72 hours after posting for circulation before awarding a correct guess and announcing a potential winner.
Here is the puzzle.
1
11
21
1211
111221
312211
13112221
What number is next in sequence? Good luck Steem heads.