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

2,349 观看· 11/27/23
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View full lesson: 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...

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