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A146971
as a simple table
n
a(n)
1
1
2
2
3
14
4
130
5
1615
6
23140
7
383820
8
7006916
9
140537609
10
3035127766
[1,2,14,130,1615,23140,383820,7006916,140537609, 3035127766]
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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)