A261280 - cp's OEIS frontend

A261280 Number of ways to start with set {1,2,...,n} and then repeat n times: partition each set into subsets.

n	a(n)
0	1
1	1
2	3
3	22
4	315
5	7556
6	274778
7	14140722
8	979687005
9	87998832685
10	9951699489061
11	1384060090903535
12	232230523534594676
13	46265730933522733556
14	10797461309089628151462
15	2918087323005280354349508
16	904185772556792011572372117
17	318432010852077710049833537040

[1, 1, 3, 22, 315, 7556, 274778, 14140722, 979687005, 87998832685, 9951699489061, 1384060090903535, 232230523534594676, 46265730933522733556, 10797461309089628151462, 2918087323005280354349508, 904185772556792011572372117, 318432010852077710049833537040]

cp's OEIS Frontend

A261280 Number of ways to start with set {1,2,...,n} and then repeat n times: partition each set into subsets.

Table of values

List of values