A263864 - cp's OEIS frontend

A263864 Triangle read by rows: T(n,k) (n>=1, k>=1) is the number of posets with n elements whose Hasse diagram has k connected components.

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	10
8	4
9	1
10	1
11	44
12	13
13	4
14	1
15	1
16	238
17	60
18	14
19	4
20	1
21	1
22	1650
23	312
24	63
25	14
26	4
27	1
28	1
29	14512
30	2075
31	328
32	64
33	14
34	4
35	1
36	1
37	163341
38	17316
39	2159
40	331
41	64
42	14
43	4
44	1
45	1
46	2360719
47	186173
48	17801
49	2175
50	332
51	64
52	14
53	4
54	1
55	1
56	43944974
57	2594568
58	189406
59	17885
60	2178
61	332
62	64
63	14
64	4
65	1
66	1
67	1055019099
68	47041877

[1, 1, 1, 3, 1, 1, 10, 4, 1, 1, 44, 13, 4, 1, 1, 238, 60, 14, 4, 1, 1, 1650, 312, 63, 14, 4, 1, 1, 14512, 2075, 328, 64, 14, 4, 1, 1, 163341, 17316, 2159, 331, 64, 14, 4, 1, 1, 2360719, 186173, 17801, 2175, 332, 64, 14, 4, 1, 1, 43944974, 2594568, 189406, 17885, 2178, 332, 64, 14, 4, 1, 1, 1055019099, 47041877]

cp's OEIS Frontend

A263864 Triangle read by rows: T(n,k) (n>=1, k>=1) is the number of posets with n elements whose Hasse diagram has k connected components.

Table of values

List of values