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A141154 as a simple table

na(n)
11
21
34
417
591
6574
74173
834353
9316012
103214181
1135832567
12434643518
135700340569
1480391481045
151213353891124
1619516682949217
17333307249446083
186023617863581806
19114854054775272053
202304312940318519977

[1,1,4,17,91,574,4173,34353,316012,3214181,
 35832567,434643518,5700340569,80391481045,
 1213353891124,19516682949217,333307249446083,
 6023617863581806,114854054775272053,
 2304312940318519977]