0,2

J. R. Stembridge, Some combinatorial aspects of reduced words in finite Coxeter groups. Trans. Amer. Math. Soc. 349 (1997), no. 4, 1285-1332.

Cf. A000108.

Equals A005807(n) - 1. Cf. A071716.

Sequence in context: A148455 A094590 A004529 this_sequence A006725 A066158 A148456

Adjacent sequences: A000775 A000776 A000777 this_sequence A000779 A000780 A000781

nonn

N. J. A. Sloane (njas(AT)research.att.com).