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A146598 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 7
10 15
11 31
12 71
13 203
14 581
15 2061
16 8089
17 33693
18 163089
19 819567
20 4807311
21 30022515
22 215155907
23 1673895429

[1,1,1,1,1,1,1,3,7,15,31,71,203,581,2061,8089,
 33693,163089,819567,4807311,30022515,215155907,
 1673895429]

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Last modified January 31 14:31 EST 2023. Contains 359975 sequences. (Running on oeis4.)