A361958 - cp's OEIS frontend

A361958 Triangle read by rows: T(n,k) is the number of connected unlabeled tiered posets with n elements and height k.

n	a(n)
1	1
2	0
3	1
4	0
5	2
6	1
7	0
8	4
9	3
10	1
11	0
12	10
13	10
14	4
15	1
16	0
17	27
18	34
19	16
20	5
21	1
22	0
23	88
24	146
25	66
26	23
27	6
28	1
29	0
30	328
31	739
32	326
33	106
34	31
35	7
36	1
37	0
38	1460
39	4671
40	1932
41	566
42	156
43	40
44	8
45	1
46	0
47	7799
48	37088
49	14104
50	3577
51	878
52	217
53	50
54	9
55	1
56	0
57	51196
58	376524
59	128652
60	27563
61	5740
62	1276
63	290
64	61
65	10
66	1

[1, 0, 1, 0, 2, 1, 0, 4, 3, 1, 0, 10, 10, 4, 1, 0, 27, 34, 16, 5, 1, 0, 88, 146, 66, 23, 6, 1, 0, 328, 739, 326, 106, 31, 7, 1, 0, 1460, 4671, 1932, 566, 156, 40, 8, 1, 0, 7799, 37088, 14104, 3577, 878, 217, 50, 9, 1, 0, 51196, 376524, 128652, 27563, 5740, 1276, 290, 61, 10, 1]

cp's OEIS Frontend

A361958 Triangle read by rows: T(n,k) is the number of connected unlabeled tiered posets with n elements and height k.

Table of values

List of values