login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A345324
as a simple table
n
a(n)
6
1
7
1
8
2
9
3
10
8
11
17
12
55
13
166
14
675
15
2977
16
15553
17
90159
18
586769
19
4197170
20
32919812
21
281235872
22
2609796620
[1,1,2,3,8,17,55,166,675,2977,15553,90159,586769, 4197170,32919812,281235872,2609796620]