A107469 1-limiting word of the morphism 1->112343211, 2->222444222, 3->333444333, 4->444444444.

1, 1, 2, 3, 4, 3, 2, 1, 1, 1, 1, 2, 3, 4, 3, 2, 1, 1, 2, 2, 2, 4, 4, 4, 2, 2, 2, 3, 3, 3, 4, 4, 4, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 4, 4, 4, 3, 3, 3, 2, 2, 2, 4, 4, 4, 2, 2, 2, 1, 1, 2, 3, 4, 3, 2, 1, 1, 1, 1, 2, 3, 4, 3, 2, 1, 1

Offset

0,3

Links

Table of n, a(n) for n=0..80.

F. M. Dekking, Recurrent Sets, Advances in Mathematics, vol. 44, no.1, April 1982, page 85, section 4.15, see Cantor set.

Mathematica

s[1] = {1, 1, 2, 3, 4, 3, 2, 1, 1}; s[2] = {2, 2, 2, 4, 4, 4, 2, 2, 2}; s[3] = {3, 3, 3, 4, 4, 4, 3, 3, 3}; s[4] = {4, 4, 4, 4, 4, 4, 4, 4, 4}; t[a_] := Flatten[s /@ a]; p[0] = {1}; p[1] = t[p[0]]; p[n_] := t[p[n - 1]]; aa = p[3]

Crossrefs

Sequence in context: A179764 A266313 A017869 * A167600 A008287 A017859

Adjacent sequences: A107466 A107467 A107468 * A107470 A107471 A107472

Keyword

nonn,changed

Author

Roger L. Bagula, May 27 2005

Extensions

Edited by Sean A. Irvine, Jun 18 2026

Status

approved