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A147040
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
3
10
3
11
5
12
5
13
9
14
9
15
21
16
21
17
69
18
69
19
305
20
305
21
1333
22
1333
23
6087
24
6087
25
37147
26
37147
27
280959
28
280959
[1,1,1,1,1,1,1,1,3,3,5,5,9,9,21,21,69,69,305,305, 1333,1333,6087,6087,37147,37147,280959,280959]
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Last modified September 18 19:25 EDT 2024. Contains 376002 sequences. (Running on oeis4.)