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A146639
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
1
12
1
13
7
14
7
15
21
16
21
17
49
18
49
19
223
20
223
21
1043
22
1043
23
7899
[1,1,1,1,1,1,1,1,1,1,1,1,7,7,21,21,49,49,223,223, 1043,1043,7899]
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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)