login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A359655
as a simple table
n
a(n)
1
4
2
12
3
172
4
1320
5
14588
6
33312
7
197416
8
469040
9
1305112
10
2274592
11
7172784
12
10407700
13
27421412
[4,12,172,1320,14588,33312,197416,469040,1305112, 2274592,7172784,10407700,27421412]