A324430 - cp's OEIS frontend

A324430 Number of labeled cyclic chord diagrams with n chords such that every chord has length at least four.

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	11
6	159
7	2488
8	43169
9	822113
10	17066007
11	384422661
12	9357185385
13	245099146171
14	6881055868664
15	206270437643247
16	6578921849694561
17	222533460191360229
18	7959059236941486231
19	300168498172776752829
20	11907361524870216908385
21	495692886834636282431752

[1, 0, 0, 0, 1, 11, 159, 2488, 43169, 822113, 17066007, 384422661, 9357185385, 245099146171, 6881055868664, 206270437643247, 6578921849694561, 222533460191360229, 7959059236941486231, 300168498172776752829, 11907361524870216908385, 495692886834636282431752]

cp's OEIS Frontend

A324430 Number of labeled cyclic chord diagrams with n chords such that every chord has length at least four.

Table of values

List of values