A202179 - cp's OEIS frontend

A202179 Triangle read by rows: T(n,k) = number of n-element unlabeled connected N-free posets of height k (2 <= k <= n).

n	a(n)
2	1
3	2
4	1
5	3
6	5
7	1
8	4
9	17
10	9
11	1
12	5
13	45
14	50
15	14
16	1
17	6
18	115
19	218
20	114
21	20
22	1
23	7
24	278
25	851
26	709
27	224
28	27
29	1
30	8
31	679
32	3161
33	3818
34	1867
35	398
36	35
37	1
38	9
39	1666
40	11507
41	19042
42	13113
43	4276
44	657
45	44
46	1
47	10
48	4167
49	41837
50	91383
51	83222
52	37898
53	8845
54	1025
55	54
56	1

[1, 2, 1, 3, 5, 1, 4, 17, 9, 1, 5, 45, 50, 14, 1, 6, 115, 218, 114, 20, 1, 7, 278, 851, 709, 224, 27, 1, 8, 679, 3161, 3818, 1867, 398, 35, 1, 9, 1666, 11507, 19042, 13113, 4276, 657, 44, 1, 10, 4167, 41837, 91383, 83222, 37898, 8845, 1025, 54, 1]

cp's OEIS Frontend

A202179 Triangle read by rows: T(n,k) = number of n-element unlabeled connected N-free posets of height k (2 <= k <= n).

Table of values

List of values