A183760 - cp's OEIS frontend

A183760 Unlabeled super-Catalan numbers: patterns of nonintersecting chords joining unlabeled points on a flippable circle, triangle decomposed by number of chords.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	1
8	2
9	5
10	4
11	1
12	3
13	10
14	18
15	12
16	1
17	3
18	16
19	51
20	71
21	34
22	1
23	4
24	26
25	116
26	271
27	280
28	111
29	1
30	4
31	36
32	233
33	776
34	1349
35	1124
36	360
37	1
38	5
39	53
40	421
41	1908
42	4749
43	6487
44	4415
45	1226

[1, 1, 1, 1, 2, 2, 1, 2, 5, 4, 1, 3, 10, 18, 12, 1, 3, 16, 51, 71, 34, 1, 4, 26, 116, 271, 280, 111, 1, 4, 36, 233, 776, 1349, 1124, 360, 1, 5, 53, 421, 1908, 4749, 6487, 4415, 1226]

cp's OEIS Frontend

A183760 Unlabeled super-Catalan numbers: patterns of nonintersecting chords joining unlabeled points on a flippable circle, triangle decomposed by number of chords.

Table of values

List of values