A343254 - cp's OEIS frontend

A343254 Triangle read by rows: T(n,k) is the number of 2-balanced partitions of a set of n elements in which the first and the second subsets have cardinality k, for n >= 0, k = 0..floor(n/2).

n	a(n)
0	1
1	1
2	2
3	1
4	5
5	2
6	15
7	5
8	3
9	52
10	15
11	8
12	203
13	52
14	25
15	16
16	877
17	203
18	89
19	53
20	4140
21	877
22	354
23	197
24	131
25	21147
26	4140
27	1551
28	810
29	512
30	115975
31	21147
32	7403
33	3643
34	2193
35	1496
36	678570
37	115975
38	38154
39	17759
40	10201
41	6697
42	4213597
43	678570
44	210803
45	93130
46	51146
47	32345
48	22482

[1, 1, 2, 1, 5, 2, 15, 5, 3, 52, 15, 8, 203, 52, 25, 16, 877, 203, 89, 53, 4140, 877, 354, 197, 131, 21147, 4140, 1551, 810, 512, 115975, 21147, 7403, 3643, 2193, 1496, 678570, 115975, 38154, 17759, 10201, 6697, 4213597, 678570, 210803, 93130, 51146, 32345, 22482]

cp's OEIS Frontend

A343254 Triangle read by rows: T(n,k) is the number of 2-balanced partitions of a set of n elements in which the first and the second subsets have cardinality k, for n >= 0, k = 0..floor(n/2).

Table of values

List of values