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A021814 as a simple table

na(n)
01
119
2239
32519
424135
5218343
61903783
716194343
8135426599
91118993447
109166829607
1174629521447
12604827848743
134885462331431
1439365093814311
15316610553147431
162543028967600167
1720405121901817895

[1,19,239,2519,24135,218343,1903783,16194343,
 135426599,1118993447,9166829607,74629521447,
 604827848743,4885462331431,39365093814311,
 316610553147431,2543028967600167,
 20405121901817895]