你能找到這個序列中的下一個數字嗎? – 亞歷克斯·詹德勒

查看完整課程: http://ed.ted.com/lessons/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.

Lesson by Alex Gendler, 由 Artrak Studio 執導.