A220882 - cp's OEIS frontend

A220882 Number of (n - 6)-dissections of an n-gon (equivalently, the number of three-dimensional faces of the (n-3)-dimensional associahedron) modulo the cyclic action.

n	a(n)
6	1
7	2
8	16
9	93
10	505
11	2548
12	12400
13	58140
14	266550
15	1198564
16	5312032
17	23263695
18	100910001
19	434217000
20	1855972096
21	7887862224
22	33359979546
23	140492933100
24	589495272736
25	2465455090098
26	10281760786682
27	42768958597992
28	177499631598976
29	735146520745000
30	3039095720959424
31	12542491305496152

[1, 2, 16, 93, 505, 2548, 12400, 58140, 266550, 1198564, 5312032, 23263695, 100910001, 434217000, 1855972096, 7887862224, 33359979546, 140492933100, 589495272736, 2465455090098, 10281760786682, 42768958597992, 177499631598976, 735146520745000, 3039095720959424, 12542491305496152]

cp's OEIS Frontend

A220882 Number of (n - 6)-dissections of an n-gon (equivalently, the number of three-dimensional faces of the (n-3)-dimensional associahedron) modulo the cyclic action.

Table of values

List of values