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A117643 as a simple table

n a(n)
0 3
1 2
2 2
3 3
4 8
5 35
6 204
7 1421
8 11360
9 102231
10 1022300
11 11245289
12 134943456
13 1754264915
14 24559708796
15 368395631925
16 5894330110784
17 100203611883311
18 1803665013899580
19 34269635264092001
20 685392705281840000

[3,2,2,3,8,35,204,1421,11360,102231,1022300,
 11245289,134943456,1754264915,24559708796,
 368395631925,5894330110784,100203611883311,
 1803665013899580,34269635264092001,
 685392705281840000]

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Last modified June 20 10:00 EDT 2021. Contains 345162 sequences. (Running on oeis4.)