login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A330581
as a simple table
n
a(n)
0
2
1
3
2
10
3
1001
4
1004006004002
5
1020191144865623440455270145683555422808365843606721760320033
[2,3,10,1001,1004006004002, 10201911448656234404552701456835554228083658436067\ 21760320033]