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A005163 as a simple table

n a(n)
1 1
2 2
3 5
4 16
5 67
6 368
7 2630
8 24376
9 293770
10 4610624
11 94080653
12 2492747656
13 85827875506
14 3842929319936
15 223624506056156
16 16901839470598576
17 1659776507866213636
18 211853506422044996288
19 35137231473111223912310
20 7569998079873075147860464

[1,2,5,16,67,368,2630,24376,293770,4610624,
 94080653,2492747656,85827875506,3842929319936,
 223624506056156,16901839470598576,
 1659776507866213636,211853506422044996288,
 35137231473111223912310,7569998079873075147860464]

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Last modified March 19 23:02 EDT 2019. Contains 321343 sequences. (Running on oeis4.)