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A197902 as a simple table

n a(n)
1 1
2 4
3 10
4 54
5 453
6 2632
7 38088
8 648219
9 13492068
10 444723130 

[1,4,10,54,453,2632,38088,648219,13492068,
 444723130]

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Last modified September 27 17:34 EDT 2023. Contains 365714 sequences. (Running on oeis4.)