login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A144830
as a simple table
n
a(n)
0
1
1
1
2
16
3
83521
4
493639046268679584001
[1,1,16,83521,493639046268679584001]