A269352 Kolakoski-(1,10) sequence: a(n) is length of n-th run.

1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1

Offset

1,2

Comments

No prime number with the union of many terms.

Links

Table of n, a(n) for n=1..74.

Michael Baake and Bernd Sing, Kolakoski-(3,1) is a (deformed) model set, arXiv:math/0206098 [math.MG], 2002-2003.

Mathematica

seed = {1, 10}; w = {}; i = 1; Do[w = Join[w, Array[seed[[Mod[i - 1, Length[seed]] + 1]]&, If[i > Length[w], seed, w][[i]]]]; i++, {n, 42}]; w

Crossrefs

Cf. similar sequences listed in A269268.

Sequence in context: A131722 A072803 A163139 * A010692 A109751 A160941

Adjacent sequences: A269349 A269350 A269351 * A269353 A269354 A269355

Keyword

nonn,easy

Author

Vincenzo Librandi, Mar 02 2016

Status

approved