login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A206978
as a simple table
n
a(n)
1
3353
2
11242609
3
20061347530
4
35350565625684
5
63023113538493420
[3353,11242609,20061347530,35350565625684, 63023113538493420]