A262320 - cp's OEIS frontend

A262320 Number of ways to select a subset s from an n-set and then partition s into blocks of equal size.

n	a(n)
0	1
1	2
2	5
3	12
4	30
5	73
6	191
7	528
8	1553
9	5032
10	18088
11	66905
12	266382
13	1164517
14	5215645
15	23868104
16	117740144
17	609872351
18	3268548407
19	18110463456
20	102867877415
21	620476915966
22	4005216028162
23	25747549921339
24	166978155172421
25	1168774024335204
26	8556355097320142

[1, 2, 5, 12, 30, 73, 191, 528, 1553, 5032, 18088, 66905, 266382, 1164517, 5215645, 23868104, 117740144, 609872351, 3268548407, 18110463456, 102867877415, 620476915966, 4005216028162, 25747549921339, 166978155172421, 1168774024335204, 8556355097320142]

cp's OEIS Frontend

A262320 Number of ways to select a subset s from an n-set and then partition s into blocks of equal size.

Table of values

List of values