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A205774 as a simple table

n a(n)
0 1
1 1
2 5
3 27
4 177
5 1245
6 9399
7 73659
8 595510
9 4923724
10 41451675
11 354071010
12 3061018302
13 26732084764
14 235476740731
15 2089770720125
16 18666863392846
17 167697751329817
18 1514206777182411
19 13734387733516323
20 125083419013852945
21 1143367086845429280

[1,1,5,27,177,1245,9399,73659,595510,4923724,
 41451675,354071010,3061018302,26732084764,
 235476740731,2089770720125,18666863392846,
 167697751329817,1514206777182411,
 13734387733516323,125083419013852945,
 1143367086845429280]

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Last modified December 5 13:34 EST 2020. Contains 338947 sequences. (Running on oeis4.)