login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A340159
as a simple table
n
a(n)
1
1
2
1
3
61
4
421
5
211082
6
11238341
7
16788951482
8
41126483642
[1,1,61,421,211082,11238341,16788951482, 41126483642]