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A141050 as a simple table

na(n)
21
32
43
510
620
798
8307
92200
1011253
11122274
121039587
1317865284
14256702931
157235318376
16178530216764
178498781072612
18365328452613008
1930052220838642600

[1,2,3,10,20,98,307,2200,11253,122274,1039587,
 17865284,256702931,7235318376,178530216764,
 8498781072612,365328452613008,30052220838642600]