A124496 - cp's OEIS frontend

A124496 Triangle read by rows: T(n,k) is the number of set partitions of {1,2,...,n} in which the size of the last block is k, 1<=k<=n; the blocks are ordered with increasing least elements.

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	1
7	9
8	4
9	1
10	1
11	31
12	14
13	5
14	1
15	1
16	121
17	54
18	20
19	6
20	1
21	1
22	523
23	233
24	85
25	27
26	7
27	1
28	1
29	2469
30	1101
31	400
32	125
33	35
34	8
35	1
36	1
37	12611
38	5625
39	2046
40	635
41	175
42	44
43	9
44	1
45	1
46	69161
47	30846
48	11226
49	3488
50	952
51	236
52	54
53	10
54	1
55	1
56	404663
57	180474
58	65676
59	20425
60	5579
61	1366
62	309
63	65
64	11
65	1
66	1

[1, 1, 1, 3, 1, 1, 9, 4, 1, 1, 31, 14, 5, 1, 1, 121, 54, 20, 6, 1, 1, 523, 233, 85, 27, 7, 1, 1, 2469, 1101, 400, 125, 35, 8, 1, 1, 12611, 5625, 2046, 635, 175, 44, 9, 1, 1, 69161, 30846, 11226, 3488, 952, 236, 54, 10, 1, 1, 404663, 180474, 65676, 20425, 5579, 1366, 309, 65, 11, 1, 1]

cp's OEIS Frontend

A124496 Triangle read by rows: T(n,k) is the number of set partitions of {1,2,...,n} in which the size of the last block is k, 1<=k<=n; the blocks are ordered with increasing least elements.

Table of values

List of values