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A250128 as a simple table

na(n)
00
11
23
39
430
596
6309
7996
83207
910329
1033267
11107142
12345072
131111371
143579384
1511528097
1637128459
17119579361
18385128390
191240380240
203994883733

[0,1,3,9,30,96,309,996,3207,10329,33267,107142,
 345072,1111371,3579384,11528097,37128459,
 119579361,385128390,1240380240,3994883733]