login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A056784
as a simple table
n
a(n)
1
1
2
8
3
90
4
524
5
9552
6
31398
7
2010734
8
2300942550
9
2614941710600
10
352521223451364324
[1,8,90,524,9552,31398,2010734,2300942550, 2614941710600,352521223451364324]