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A121726 as a simple table

n a(n)
1 1
2 2
3 6
4 21
5 85
6 410
7 2366
8 16065
9 125665
10 1112074
11 10976174
12 119481285
13 1421542629
14 18348340114
15 255323504918
16 3809950976993
17 60683990530209
18 1027542662934898
19 18430998766219318
20 349096664728623317
21 6962409983976703317
22 145841989688186383338
23 3201192743180799343822

[1,2,6,21,85,410,2366,16065,125665,1112074,
 10976174,119481285,1421542629,18348340114,
 255323504918,3809950976993,60683990530209,
 1027542662934898,18430998766219318,
 349096664728623317,6962409983976703317,
 145841989688186383338,3201192743180799343822]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)