A083570 A de Bruijn sequence of length 9 over {0, 1, 2}, repeated.

0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2, 0, 0, 1, 1, 2, 2, 1, 0, 2

Offset

0,5

Comments

Each of the 9 pairs 00, 01, ..., 22 occurs exactly once in each period.

Links

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

F. Mendivil, Fractals, graphs and fields, Amer. Math. Monthly, 110 (No. 6, 2003), 503-515.

Mathematica

PadRight[{}, 99, {0, 0, 1, 1, 2, 2, 1, 0, 2}] (* Harvey P. Dale, Nov 23 2011 *)

Crossrefs

Sequence in context: A141335 A133624 A030110 * A287407 A153240 A153241

Adjacent sequences: A083567 A083568 A083569 * A083571 A083572 A083573

Keyword

nonn

Author

N. J. A. Sloane, Jun 14 2003

Status

approved