A294437 Erroneous version of A007290.

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

Offset

1,2

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

Table of n, a(n) for n=1..7.

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.]

Crossrefs

Sequence in context: A294869 A305129 A032633 * A128445 A007290 A049031

Adjacent sequences: A294434 A294435 A294436 * A294438 A294439 A294440

Keyword

dead

Status

approved