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A124419 as a simple table

na(n)
01
11
21
32
44
510
625
775
8225
9780
102704
1110556
1241209
13178031
14769129
153630780
1617139600
1787548580
18447195609
192452523325
2013450200625
2178697155750
22460457244900
232859220516290
2417754399678409
25116482516809889
26764214897046969
275277304280371714

[1,1,1,2,4,10,25,75,225,780,2704,10556,41209,
 178031,769129,3630780,17139600,87548580,447195609,
 2452523325,13450200625,78697155750,460457244900,
 2859220516290,17754399678409,116482516809889,
 764214897046969,5277304280371714]