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Note that A005150 has really different first differences characteristic because of the its initial term that is 1.
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f[n_, d_: 1] := NestList[Flatten[Reverse /@ Map[Function[k, Through[{First, Length}@ k]], Split@ #]] &, {d}, n - 1]; Differences@ Array[FromDigits@ f[#, 2][[#]] &, {13}] (* Michael De Vlieger, Jan 03 2016, after Zerinvary Lajos at A006751 *)
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Are partial sums of look and say sequences interesting too?
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Sequence is interesting because this sequence displays the certain characteristic features of look and say sequence A006751. Certain formulas can represent the relations between terms of this sequence. In formula section, there are the most simpliest of them. Note that these features cannot be observed for all look and say sequences. For example, A005150 has really different first differences characteristic because of the its initial term that is 1.
Note that A005150 has really different first differences characteristic because of the its initial term that is 1.
Are partial sums of look and say sequences interesting too?