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A210507 as a simple table

n a(n)
3 1
4 10
5 111
6 1468
7 22940
8 416250
9 8626660
10 201349672
11 5230931454
12 149783426470
13 4688281021490
14 159284662406460
15 5838769123729984
16 229711022253150382
17 9655348958575618320
18 431845990498159342000
19 20479127764425617465660
20 1026429489947790074019978

[1,10,111,1468,22940,416250,8626660,201349672,
 5230931454,149783426470,4688281021490,
 159284662406460,5838769123729984,
 229711022253150382,9655348958575618320,
 431845990498159342000,20479127764425617465660,
 1026429489947790074019978]

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Last modified October 18 04:57 EDT 2019. Contains 328145 sequences. (Running on oeis4.)