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