login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A139472
as a simple table
n
a(n)
1
1
2
7
3
76
4
732
5
6732
6
62934
[1,7,76,732,6732,62934]