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A203296 as a simple table

na(n)
17
228
3176
4944
54206
615798
751768
8151393
9403131
10991692
112280620
124948566
1310208256
1420143302
1538215998
1670007951
17124283183
18214475760
19360744276
20592751998
21953388836
221503671490
232329136950
243548069499
255322005825

[7,28,176,944,4206,15798,51768,151393,403131,
 991692,2280620,4948566,10208256,20143302,38215998,
 70007951,124283183,214475760,360744276,592751998,
 953388836,1503671490,2329136950,3548069499,
 5322005825]