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A005816 as a simple table

n a(n)
0 1
1 1
2 3
3 15
4 138
5 2021
6 43581
7 1295493
8 50752145
9 2533755933
10 157055247261
11 11836611005031
12 1066129321651668
13 113117849882149725
14 13965580274228976213
15 1985189312618723797371
16 321932406123733248625851
17 59079829666712346141491403
18 12182062872168618012045410805 

[1,1,3,15,138,2021,43581,1295493,50752145,
 2533755933,157055247261,11836611005031,
 1066129321651668,113117849882149725,
 13965580274228976213,1985189312618723797371,
 321932406123733248625851,
 59079829666712346141491403,
 12182062872168618012045410805]

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Last modified May 23 15:34 EDT 2024. Contains 372763 sequences. (Running on oeis4.)