login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A375129
as a simple table
n
a(n)
1
1
2
1
3
2
4
7
5
24
6
126
7
815
8
6465
9
58072
10
578663
[1,1,2,7,24,126,815,6465,58072,578663]
