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A146811 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
13 179
14 483
15 1549
16 5893
17 23203
18 108809
19 513209
20 2742185
21 15938025
22 102500855

[1,1,1,1,1,1,1,3,7,15,31,65,179,483,1549,5893,
 23203,108809,513209,2742185,15938025,102500855]

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Last modified December 8 21:28 EST 2022. Contains 358698 sequences. (Running on oeis4.)