login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A342267
as a simple table
n
a(n)
1
1
2
2
3
21
4
694
5
118995
6
132891609
[1,2,21,694,118995,132891609]
