Look and say sequence is the sequence of numbers generated from the previous number by reading off the digits of which the number consists.
So the first number is 1 then there is one "1". one 1 -> 11 Now use the number "11" and there are two 1s. two 1s -> 21 21: one 2 and one 1 -> 1211 1211: one 1, one 2 and two 1s ->
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