A013549 Incorrect version of A000085.

1, 2, 4, 10, 41, 76

Offset

1,2

Comments

Appears on page 2, Figure 2 (left column) of the reference; Corollary 1.6 (page 17) says that the permutations counted are involutions. - Sean A. Irvine, Aug 08 2018

Links

Table of n, a(n) for n=1..6.

Frank Schmidt and Rodica Simion, Card shuffling and a transformation on S_n, Aequationes Math. 44 (1992), no. 1, 11-34.

Crossrefs

Sequence in context: A322698 A153757 A159860 * A184253 A174136 A125805

Adjacent sequences: A013546 A013547 A013548 * A013550 A013551 A013552

Keyword

dead

Status

approved