login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A010389
as a simple table
n
a(n)
1
0
2
1
3
4
4
7
5
9
6
10
7
13
8
16
9
19
10
22
11
25
[0,1,4,7,9,10,13,16,19,22,25]