login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A216418
as a simple table
n
a(n)
1
3
2
23
3
61
4
331
5
2837
6
18169
[3,23,61,331,2837,18169]