A210663 Irregular triangle read by rows: row n gives decimal representatives for cycles in de Bruijn graph G_n.

0, 1, 0, 1, 3, 0, 1, 5, 7, 0, 1, 9, 5, 13, 15, 0, 1, 17, 9, 25, 21, 27, 31, 0, 1, 33, 17, 35, 9, 11, 41, 51, 21, 43, 27, 55, 63, 0, 1, 65, 33, 97, 17, 49, 81, 113, 73, 37, 101, 51, 83, 115, 85, 107, 91, 119, 127, 0, 1, 129, 65, 193, 33, 97, 161, 225, 17, 49, 81, 113, 145, 177, 209, 241, 73, 201, 101, 165, 229, 51, 83, 115, 179, 211, 243, 85, 213, 107, 235, 219, 119, 247, 255

Offset

1,5

Links

Table of n, a(n) for n=1..93.

Abraham Lempel, On extremal factors of the de Bruijn graph J. Combinatorial Theory Ser. B 11 1971 17--27. MR0276126 (43 #1874)

Example

Triangle begins:
0 1
0 1 3
0 1 5 7
0 1 9 5 13 15
0 1 17 9 25 21 27 31
0 1 33 17 35 9 11 41 51 21 43 27 55 63
0 1 65 33 97 17 49 81 113 73 37 101 51 83 115 85 107 91 119 127
0 1 129 65 193 33 97 161 225 17 49 81 113 145 177 209 241 73 201 101 165 229 51 83 115 179 211 243 85 213 107 235 219 119 247 255...

Crossrefs

Sequence in context: A034261 A046778 A119925 * A355172 A102765 A355257

Adjacent sequences: A210660 A210661 A210662 * A210664 A210665 A210666

Keyword

nonn,tabf,base

Author

N. J. A. Sloane, Mar 28 2012

Status

approved