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RosettaCodeData/Task/Look-and-say-sequence/Mathematica/look-and-say-sequence-1.math
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2013-04-10 22:43:41 -07:00

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RunLengthEncode[x_List]:=(Through[{First,Length}[#]]&)/@Split[x]
LookAndSay[n_,d_:1]:=NestList[Flatten[Reverse/@RunLengthEncode[#]]&,{d},n-1]
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