login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A389816
as a simple table
n
a(n)
1
1
2
2
3
8
4
33
5
51819
6
260515
7
573204
8
4846147
9
37362253
[1,2,8,33,51819,260515,573204,4846147,37362253]