login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A123812
as a simple table
n
a(n)
1
1
2
8
3
145
4
2884
5
62517
6
1404472
7
32430749
8
763219988
9
18231473349
[1,8,145,2884,62517,1404472,32430749,763219988, 18231473349]