A352184 Coxeter-Catalan numbers for the Coxeter groups A_0, A_1, A_2, A_3 = D_3, D_4, D_5, E_6, E_7, E_8.

1, 2, 5, 14, 50, 182, 833, 4160, 25080

Offset

0,2

Links

Table of n, a(n) for n=0..8.

Drew Armstrong, Generalized Noncrossing Partitions and Combinatorics of Coxeter Groups, Mem. Amer. Math. Soc. 202 (2009), no. 949, x+159. MR 2561274 16. See Table 2.8.

Drew Armstrong, Generalized Noncrossing Partitions and Combinatorics of Coxeter Groups, arXiv:math/0611106 [math.CO], 2006-2007.

Crossrefs

Cf. A000108, A051924.

Sequence in context: A224978 A006390 A100597 * A022562 A341360 A320954

Adjacent sequences: A352181 A352182 A352183 * A352185 A352186 A352187

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Mar 09 2022

Status

approved