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A147235 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 65
13 185
14 517
15 1673
16 6585
17 26113
18 126591
19 608081
20 3381041
21 20245821
22 136182387

[1,1,1,1,1,1,1,3,7,15,31,65,185,517,1673,6585,
 26113,126591,608081,3381041,20245821,136182387]

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Last modified January 29 21:02 EST 2023. Contains 359931 sequences. (Running on oeis4.)