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A023019 as a simple table

na(n)
01
121
2252
32233
416170
5100926
6560945
72837418
813266099
957994475
10239170239
11937026279
123507380170
1312601619226
1443628951025
15146036139347
16473924014599
171494785958435
184591920193357
1913764656869425
2040328218603134

[1,21,252,2233,16170,100926,560945,2837418,
 13266099,57994475,239170239,937026279,3507380170,
 12601619226,43628951025,146036139347,473924014599,
 1494785958435,4591920193357,13764656869425,
 40328218603134]