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A163941 as a simple table

na(n)
01
19
252
3246
41039
54083
615274
755152
8193957
9668397
102266816
117589418
1225143355
1382571751
14269173078
15871958244
162809322833
179008574945
1828768068460
1991532284830
20290283189991
21917912770779
222894936303362

[1,9,52,246,1039,4083,15274,55152,193957,668397,
 2266816,7589418,25143355,82571751,269173078,
 871958244,2809322833,9008574945,28768068460,
 91532284830,290283189991,917912770779,
 2894936303362]