login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A279691
as a simple table
n
a(n)
1
2
2
20
3
2029
4
5319934
5
534759300182
6
2815323435872410905
[2,20,2029,5319934,534759300182, 2815323435872410905]