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A063179 as a simple table

n a(n)
1 1
2 1
3 2
4 4
5 12
6 42
7 178
8 870
9 4830
10 29976
11 205572
12 1543210
13 12583242
14 110725638
15 1045664646
16 10547679660

[1,1,2,4,12,42,178,870,4830,29976,205572,1543210,
 12583242,110725638,1045664646,10547679660]

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Last modified October 21 23:34 EDT 2021. Contains 348160 sequences. (Running on oeis4.)