login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A146442
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
10
1
11
3
12
3
13
9
14
9
15
23
16
23
17
51
18
51
19
307
20
307
21
2165
22
2165
23
14201
24
14201
[1,1,1,1,1,1,1,1,1,1,3,3,9,9,23,23,51,51,307,307, 2165,2165,14201,14201]