A115068 - cp's OEIS frontend

A115068 Triangle read by rows: T(n,k) = number of elements in the Coxeter group D_n with descent set contained in {s_k}, for 0<=k<=n-1.

n	a(n)
1	1
2	2
3	2
4	4
5	6
6	3
7	8
8	16
9	12
10	4
11	16
12	40
13	40
14	20
15	5
16	32
17	96
18	120
19	80
20	30
21	6
22	64
23	224
24	336
25	280
26	140
27	42
28	7
29	128
30	512
31	896
32	896
33	560
34	224
35	56
36	8
37	256
38	1152
39	2304
40	2688
41	2016
42	1008
43	336
44	72
45	9
46	512
47	2560
48	5760
49	7680
50	6720
51	4032
52	1680
53	480
54	90
55	10
56	1024
57	5632
58	14080
59	21120

[1, 2, 2, 4, 6, 3, 8, 16, 12, 4, 16, 40, 40, 20, 5, 32, 96, 120, 80, 30, 6, 64, 224, 336, 280, 140, 42, 7, 128, 512, 896, 896, 560, 224, 56, 8, 256, 1152, 2304, 2688, 2016, 1008, 336, 72, 9, 512, 2560, 5760, 7680, 6720, 4032, 1680, 480, 90, 10, 1024, 5632, 14080, 21120]

cp's OEIS Frontend

A115068 Triangle read by rows: T(n,k) = number of elements in the Coxeter group D_n with descent set contained in {s_k}, for 0<=k<=n-1.

Table of values

List of values