Conway's Look and Say Sequence

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Conway's "look and say" sequence starts with a digit, a seed, which is used to describe the next term. With a seed of one, the first term is 1. You look at the first term 1 and say "one one", so the second term is 11. You look at the second term 11 and say "two ones", so the third term is 21, and so forth.

Contributed by John Campbell (October 2013)
Open content licensed under CC BY-NC-SA




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