login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A100509
as a simple table
n
a(n)
1
216
2
1149984
3
365727111552
4
1590733122516339863159808000
[216,1149984,365727111552, 1590733122516339863159808000]