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A143922 as a simple table

n a(n)
0 1
1 1
2 2
3 9
4 52
5 395
6 3666
7 40257
8 510600
9 7343523
10 118093310
11 2099660497
12 40896662124
13 866008634907
14 19808285169834
15 486698217317985
16 12784410332144656
17 357512156423101427
18 10604399352362692182

[1,1,2,9,52,395,3666,40257,510600,7343523,
 118093310,2099660497,40896662124,866008634907,
 19808285169834,486698217317985,12784410332144656,
 357512156423101427,10604399352362692182]

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Last modified December 2 07:33 EST 2021. Contains 349437 sequences. (Running on oeis4.)