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A187006 as a simple table

n a(n)
1 1
2 2
3 6
4 29
5 202
6 1880
7 22108
8 315784
9 5322126
10 103541022
11 2285965792
12 56501970700
13 1546339364952
14 46433615292128
15 1518172222889000
16 53695946069029290
17 2042960241832903824
18 83207255745283689726

[1,2,6,29,202,1880,22108,315784,5322126,103541022,
 2285965792,56501970700,1546339364952,
 46433615292128,1518172222889000,53695946069029290,
 2042960241832903824,83207255745283689726]

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Last modified September 17 06:16 EDT 2021. Contains 347478 sequences. (Running on oeis4.)