A241188 - cp's OEIS frontend

A241188 Triangle T(n,s) of Dynkin type D_n read by rows (n >= 2, 0 <= s <= n).

n	a(n)
2	1
3	2
4	1
5	1
6	3
7	5
8	5
9	1
10	4
11	9
12	16
13	20
14	1
15	5
16	14
17	30
18	55
19	77
20	1
21	6
22	20
23	50
24	105
25	196
26	294
27	1
28	7
29	27
30	77
31	182
32	378
33	714
34	1122
35	1
36	8
37	35
38	112
39	294
40	672
41	1386
42	2640
43	4290
44	1
45	9
46	44
47	156
48	450
49	1122
50	2508
51	5148
52	9867
53	16445

[1, 2, 1, 1, 3, 5, 5, 1, 4, 9, 16, 20, 1, 5, 14, 30, 55, 77, 1, 6, 20, 50, 105, 196, 294, 1, 7, 27, 77, 182, 378, 714, 1122, 1, 8, 35, 112, 294, 672, 1386, 2640, 4290, 1, 9, 44, 156, 450, 1122, 2508, 5148, 9867, 16445]

cp's OEIS Frontend

A241188 Triangle T(n,s) of Dynkin type D_n read by rows (n >= 2, 0 <= s <= n).

Table of values

List of values