login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A213599
as a simple table
n
a(n)
1
1
2
3
3
25
4
549
5
30535
6
4168935
7
1362083785
8
1042729407045
[1,3,25,549,30535,4168935,1362083785, 1042729407045]