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A222662 as a simple table

n a(n)
1 3
2 9
3 44
4 452
5 4241
6 62406
7 1058776
8 17374571
9 288771291
10 4860565711
11 81668904553
12 1371394427050
13 23054727857828
14 387744337542770
15 6522573483253608
16 109759232573531088
17 1847613631016545713
18 31110964472846965874

[3,9,44,452,4241,62406,1058776,17374571,288771291,
 4860565711,81668904553,1371394427050,
 23054727857828,387744337542770,6522573483253608,
 109759232573531088,1847613631016545713,
 31110964472846965874]

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Last modified December 4 19:40 EST 2021. Contains 349526 sequences. (Running on oeis4.)