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A293308 as a simple table

na(n)
11
22
33
410
515
656
7210
8330
91287
102002
118008
1231824
1350388
14203490
15319770
161307504
172042975
188436285
1934597290
2054627300
21225792840
22354817320
231476337800
246107086800
259669554100
2640225345056
2763432274896
28265182149218
29416714805914
301749695026860

[1,2,3,10,15,56,210,330,1287,2002,8008,31824,
 50388,203490,319770,1307504,2042975,8436285,
 34597290,54627300,225792840,354817320,1476337800,
 6107086800,9669554100,40225345056,63432274896,
 265182149218,416714805914,1749695026860]