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A205803 as a simple table

n a(n)
1 1
2 1
3 3
4 10
5 44
6 249
7 1693
8 13384
9 120932
10 1229759
11 13894429
12 172677450
13 2341111850
14 34385290940
15 543885462121
16 9217332132024
17 166621796893824
18 3200275345024464
19 65082833538054240
20 1397097303096855578
21 31569176387677926733
22 749012642530028865010

[1,1,3,10,44,249,1693,13384,120932,1229759,
 13894429,172677450,2341111850,34385290940,
 543885462121,9217332132024,166621796893824,
 3200275345024464,65082833538054240,
 1397097303096855578,31569176387677926733,
 749012642530028865010]

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Last modified July 24 10:55 EDT 2021. Contains 346273 sequences. (Running on oeis4.)