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A075843 as a simple table

n a(n)
0 0
1 1
2 20
3 399
4 7960
5 158801
6 3168060
7 63202399
8 1260879920
9 25154396001
10 501827040100
11 10011386405999
12 199725901079880
13 3984506635191601
14 79490406802752140
15 1585823629419851199
16 31636982181594271840

[0,1,20,399,7960,158801,3168060,63202399,
 1260879920,25154396001,501827040100,
 10011386405999,199725901079880,3984506635191601,
 79490406802752140,1585823629419851199,
 31636982181594271840]

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Last modified May 8 12:43 EDT 2024. Contains 372333 sequences. (Running on oeis4.)