login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A319721
as a simple table
n
a(n)
0
1
1
1
2
4
3
8
4
24
5
50
6
148
7
349
8
1014
9
2717
10
8114
[1,1,4,8,24,50,148,349,1014,2717,8114]