login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A192296
as a simple table
n
a(n)
0
1
1
3
2
15
3
93
4
621
5
4425
6
32703
7
248901
8
1934007
9
15285771
10
122437215
11
991731999
12
8107830597
[1,3,15,93,621,4425,32703,248901,1934007,15285771, 122437215,991731999,8107830597]