A055538 - cp's OEIS frontend

A055538 Number of asymmetric types of (3,n)-hypergraphs without isolated nodes, under action of symmetric group S_3; asymmetric n-covers of an unlabeled 3-set.

n	a(n)
3	4
4	20
5	65
6	170
7	383
8	779
9	1470
10	2611
11	4418
12	7182
13	11283
14	17213
15	25601
16	37230
17	53074
18	74327
19	102434
20	139133
21	186501
22	246988
23	323479
24	419344
25	538492
26	685438
27	865376
28	1084236
29	1348777
30	1666664
31	2046551
32	2498179
33	3032482
34	3661673
35	4399374

[4, 20, 65, 170, 383, 779, 1470, 2611, 4418, 7182, 11283, 17213, 25601, 37230, 53074, 74327, 102434, 139133, 186501, 246988, 323479, 419344, 538492, 685438, 865376, 1084236, 1348777, 1666664, 2046551, 2498179, 3032482, 3661673, 4399374]

cp's OEIS Frontend

A055538 Number of asymmetric types of (3,n)-hypergraphs without isolated nodes, under action of symmetric group S_3; asymmetric n-covers of an unlabeled 3-set.

Table of values

List of values