login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A048403
as a simple table
n
a(n)
1
2
2
3
3
5
4
7
5
17
6
71
7
1717171717171717171717171717171
8
1717171717171717171717171717171717171
[2,3,5,7,17,71,1717171717171717171717171717171, 1717171717171717171717171717171717171]