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A146718 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 7
10 13
11 27
12 41
13 107
14 327
15 1681
16 5451
17 24597
18 80545
19 454313
20 2226033
21 18080203
22 106915629

[1,1,1,1,1,1,1,1,7,13,27,41,107,327,1681,5451,
 24597,80545,454313,2226033,18080203,106915629]

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Last modified October 1 14:19 EDT 2022. Contains 357149 sequences. (Running on oeis4.)