Can you find the next number in this sequence? - Alex Gendler

1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and explains how beyond just being a neat puzzle, this type of sequence has practical applications as well.

Play: Can you find the next number in this sequence? - Alex Gendler