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A192988 as a simple table

n a(n)
1 1
2 2
3 3
4 4
5 9
6 21
7 91
8 1517
9 385318
10 24745571498
11 102057218155974827415
12 1735945962956039658808082636319818286550

[1,2,3,4,9,21,91,1517,385318,24745571498,
 102057218155974827415,
 1735945962956039658808082636319818286550]

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Last modified December 4 08:57 EST 2021. Contains 349484 sequences. (Running on oeis4.)