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A000182 as a simple table

n a(n)
1 1
2 2
3 16
4 272
5 7936
6 353792
7 22368256
8 1903757312
9 209865342976
10 29088885112832
11 4951498053124096
12 1015423886506852352
13 246921480190207983616
14 70251601603943959887872
15 23119184187809597841473536

[1,2,16,272,7936,353792,22368256,1903757312,
 209865342976,29088885112832,4951498053124096,
 1015423886506852352,246921480190207983616,
 70251601603943959887872,
 23119184187809597841473536]

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Last modified December 13 15:03 EST 2018. Contains 318086 sequences. (Running on oeis4.)