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

Author

N. J. A. Sloane, Jun 14 2003

Keywords

• nonn
• changed

Comments

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

Links

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

Programs

Mathematica

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