login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A121082
as a simple table
n
a(n)
1
2
2
14
3
126
4
1238
5
12517
6
124973
7
1249931
8
12500186
9
125000681
10
1250005179
[2,14,126,1238,12517,124973,1249931,12500186, 125000681,1250005179]