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A003432 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 3
5 5
6 9
7 32
8 56
9 144
10 320
11 1458
12 3645
13 9477
14 25515
15 131072
16 327680
17 1114112
18 3411968
19 19531250
20 56640625

[1,1,1,2,3,5,9,32,56,144,320,1458,3645,9477,25515,
 131072,327680,1114112,3411968,19531250,56640625]

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Last modified January 18 06:34 EST 2019. Contains 319269 sequences. (Running on oeis4.)