A294437 Erroneous version of A007290.

0, 2, 8, 20, 40, 30, 27

Offset: 1

Author

Keywords

• dead

Comments

Included in accordance with OEIS policy of including erroneous but published sequences to serve as pointers to the correct versions.

Original name: Number of conjugacy classes of primitive words of length 3 over an alphabet of size n.

Links

• Dominique Perrin and Christophe Reutenauer, Hall sets, Lazard sets and comma-free codes, arXiv preprint arXiv:1609.05438 [math.CO] (2016).
• Dominique Perrin and Christophe Reutenauer, Hall sets, Lazard sets and comma-free codes, Discrete Math., 341 (2018), 232-243.
• Dominique Perrin and Christophe Reutenauer, Hall sets, Lazard sets and comma-free codes, Discrete Math., 341 (2018), 232-243. [Annotated scanned copy of page 236 only.]