A106751 - OEIS

A106751

Define the morphism f: 1->111112, 2->22223, 3->1; sequence gives trajectory of 1 under f.

1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1

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OFFSET

0,6

COMMENTS

An inflation rule which does not produce quasiperiodicity.

REFERENCES

E. Bombieri and J. Taylor, Which distribution of matter diffracts? An initial investigation, in International Workshop on Aperiodic Crystals (Les Houches, 1986), J. de Physique, Colloq. C3, 47 (1986), C3-19 to C3-28.

LINKS

Table of n, a(n) for n=0..98.

Index entries for sequences that are fixed points of mappings

MATHEMATICA

Nest[Flatten[ # /. {1 -> {1, 1, 1, 1, 1, 2}, 2 -> {2, 2, 2, 2, 3}, 3 -> 1}] &, {1}, 3] (* Robert G. Wilson v, May 16 2005 *)

CROSSREFS

Sequence in context: A319689 A373216 A303824 * A325469 A278567 A043279

Adjacent sequences: A106748 A106749 A106750 * A106752 A106753 A106754

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 16 2005

STATUS

approved