A361957 - cp's OEIS frontend

A361957 Triangle read by rows: T(n,k) is the number of unlabeled tiered posets with n elements and height k.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	2
9	1
10	0
11	1
12	5
13	3
14	1
15	0
16	1
17	12
18	10
19	4
20	1
21	0
22	1
23	35
24	35
25	16
26	5
27	1
28	0
29	1
30	108
31	149
32	66
33	23
34	6
35	1
36	0
37	1
38	393
39	755
40	327
41	106
42	31
43	7
44	1
45	0
46	1
47	1666
48	4736
49	1936
50	566
51	156
52	40
53	8
54	1
55	0
56	1
57	8543
58	37394
59	14130
60	3578
61	878
62	217
63	50
64	9
65	1

[1, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 5, 3, 1, 0, 1, 12, 10, 4, 1, 0, 1, 35, 35, 16, 5, 1, 0, 1, 108, 149, 66, 23, 6, 1, 0, 1, 393, 755, 327, 106, 31, 7, 1, 0, 1, 1666, 4736, 1936, 566, 156, 40, 8, 1, 0, 1, 8543, 37394, 14130, 3578, 878, 217, 50, 9, 1]

cp's OEIS Frontend

A361957 Triangle read by rows: T(n,k) is the number of unlabeled tiered posets with n elements and height k.

Table of values

List of values