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A193674
as a simple table
n
a(n)
0
1
1
2
2
5
3
19
4
184
5
14664
6
108295846
7
2796163199765896
[1,2,5,19,184,14664,108295846,2796163199765896]
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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)