login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A397797
as a simple table
n
a(n)
1
0
2
3
3
16
4
157
5
1707
6
25889
[0,3,16,157,1707,25889]
