login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A208207
as a simple table
n
a(n)
0
1
1
1
2
1
3
2
4
9
5
1459
6
13975855106
7
442535332406378982945622818194705
[1,1,1,2,9,1459,13975855106, 442535332406378982945622818194705]