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A188210 as a simple table

n a(n)
1 1
2 9
3 50
4 318
5 1944
6 11963
7 73316
8 450096
9 2767118
10 17052653
11 105356398
12 652694106
13 4054512228
14 25254176312
15 157709971144
16 987358943331
17 6196330627807
18 38975339759358
19 245693231541360
20 1552021349807456
21 9823321416340666

[1,9,50,318,1944,11963,73316,450096,2767118,
 17052653,105356398,652694106,4054512228,
 25254176312,157709971144,987358943331,
 6196330627807,38975339759358,245693231541360,
 1552021349807456,9823321416340666]

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Last modified March 25 16:32 EDT 2019. Contains 321470 sequences. (Running on oeis4.)