OFFSET
0,3
LINKS
Steven Linton, James Propp, Tom Roby, and Julian West, Equivalence classes of permutations under various relations generated by constrained transpositions, 2011 arXiv:1111.3920 [math.CO], J. Int. Seq. 15 (2012) #12.9.1
CROSSREFS
KEYWORD
nonn
AUTHOR
Tom Roby, May 08 2012
EXTENSIONS
Definition improved by Tom Roby, May 15 2012
STATUS
approved