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A105699 Duplicate of A105698. 0
1, 4, 2, 1, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 4, 1, 3, 4, 1, 4, 2, 1, 3, 2, 4, 3, 4, 1, 3, 4, 2, 1, 3, 2, 3, 2, 4, 3, 1, 4, 2, 1, 2, 1, 3, 2, 1, 4, 2, 1, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 4, 1, 3, 4, 1, 4, 2, 1, 3, 2, 4, 3, 4, 1, 3, 4, 1, 4, 2, 1, 4, 1, 3, 4, 2, 1, 3, 2, 1, 4, 2, 1, 3, 2, 4, 3, 4, 1, 3, 4, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

One symbol per substitution added symmetrically to Dekking's Peano set with order reversed permutation of substitutions.

LINKS

Table of n, a(n) for n=0..104.

F. M. Dekking, Recurrent Sets, Advances in Mathematics, vol. 44, no.1, April 1982, page 85, section 4.1

FORMULA

4->{1, 4, 2, 1}, 3->{2, 1, 3, 2}, 2->{3, 2, 4, 3}, 1->{4, 1, 3, 4}

MATHEMATICA

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

CROSSREFS

Sequence in context: A023528 A236308 A105698 * A023526 A082901 A136619

Adjacent sequences:  A105696 A105697 A105698 * A105700 A105701 A105702

KEYWORD

dead

AUTHOR

Roger L. Bagula, May 04 2005

STATUS

approved

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Last modified July 20 11:28 EDT 2019. Contains 325180 sequences. (Running on oeis4.)