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A145957 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 9
12 9
13 23
14 23
15 125
16 125
17 821
18 821
19 6239
20 6239
21 71403
22 71403
23 1048093
24 1048093
25 19913069
26 19913069
27 517074745
28 517074745
29 17642361171
30 17642361171

[1,1,1,1,1,1,1,1,3,3,9,9,23,23,125,125,821,821,
 6239,6239,71403,71403,1048093,1048093,19913069,
 19913069,517074745,517074745,17642361171,
 17642361171]

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)