login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A016729
as a simple table
n
a(n)
1
1
2
2
3
2
4
2
5
3
6
4
7
3
8
4
9
4
10
4
11
5
12
6
13
5
14
6
15
6
16
6
17
7
18
8
19
7
20
8
21
8
22
8
[1,2,2,2,3,4,3,4,4,4,5,6,5,6,6,6,7,8,7,8,8,8]