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A001472 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 16
5 56
6 256
7 1072
8 6224
9 33616
10 218656
11 1326656
12 9893632
13 70186624
14 574017536
15 4454046976
16 40073925376
17 347165733632
18 3370414011904
19 31426411211776
20 328454079574016
21 3331595921852416
22 37125035407900672
23 400800185285464064

[1,1,2,4,16,56,256,1072,6224,33616,218656,1326656,
 9893632,70186624,574017536,4454046976,40073925376,
 347165733632,3370414011904,31426411211776,
 328454079574016,3331595921852416,
 37125035407900672,400800185285464064]

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Last modified April 11 09:24 EDT 2021. Contains 342886 sequences. (Running on oeis4.)