login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A270806
as a simple table
n
a(n)
0
0
1
0
2
0
3
0
4
0
5
8
6
27
7
69
8
154
9
309
10
546
11
889
[0,0,0,0,0,8,27,69,154,309,546,889]