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A203917 as a simple table

n a(n)
1 392
2 1682
3 6050
4 21632
5 77618
6 279752
7 1008200
8 3628818
9 13056050
10 46986818
11 169132832
12 608795618
13 2191220000
14 7886675232
15 28386296450
16 102170984882
17 367744025618
18 1323616564512
19 4764074516450
20 17147281548168
21 61718049816200

[392,1682,6050,21632,77618,279752,1008200,3628818,
 13056050,46986818,169132832,608795618,2191220000,
 7886675232,28386296450,102170984882,367744025618,
 1323616564512,4764074516450,17147281548168,
 61718049816200]

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Last modified June 27 22:08 EDT 2022. Contains 354898 sequences. (Running on oeis4.)