login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A133006
as a simple table
n
a(n)
1
0
2
3
3
6
4
9
5
10
6
12
7
15
[0,3,6,9,10,12,15]