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A146237
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
5
12
5
13
17
14
17
15
37
16
37
17
167
18
167
19
1407
20
1407
21
11143
22
11143
23
90213
24
90213
25
1212859
[1,1,1,1,1,1,1,1,1,1,5,5,17,17,37,37,167,167,1407, 1407,11143,11143,90213,90213,1212859]
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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)