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A057198 as a simple table

na(n)
13
28
323
468
5203
6608
71823
85468
916403
1049208
11147623
12442868
131328603
143985808
1511957423
1635872268
17107616803
18322850408
19968551223
202905653668
218716961003
2226150883008
2378452649023
24235357947068
25706073841203
262118221523608

[3,8,23,68,203,608,1823,5468,16403,49208,147623,
 442868,1328603,3985808,11957423,35872268,
 107616803,322850408,968551223,2905653668,
 8716961003,26150883008,78452649023,235357947068,
 706073841203,2118221523608]