login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A321227
as a simple table
n
a(n)
0
0
1
1
2
3
3
6
4
17
5
43
6
147
7
458
8
1729
9
6445
10
27011
[0,1,3,6,17,43,147,458,1729,6445,27011]
