login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A120441
as a simple table
n
a(n)
1
3
2
2
3
1
4
2
5
3
6
3
7
3
8
2
9
2
10
2
11
3
12
9
13
9
14
3
15
2
16
1
17
2
18
3
19
3
20
3
21
3
22
2
23
2
24
3
25
2
26
1
[3,2,1,2,3,3,3,2,2,2,3,9,9,3,2,1,2,3,3,3,3,2,2,3, 2,1]