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A147472 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 19
16 19
17 55
18 55
19 245
20 245
21 1021
22 1021
23 4107
24 4107
25 20679
26 20679 

[1,1,1,1,1,1,1,1,3,3,5,5,9,9,19,19,55,55,245,245,
 1021,1021,4107,4107,20679,20679]

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)