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A074508 as a simple table

na(n)
03
110
246
3244
41378
58020
647386
7282124
81686178
910097380
1060525226
11362974204
122177313778
1313062288340
1478368947066
15470199333484
162821152954178
1716926788584900
18101560344088906
19609360902271964

[3,10,46,244,1378,8020,47386,282124,1686178,
 10097380,60525226,362974204,2177313778,
 13062288340,78368947066,470199333484,
 2821152954178,16926788584900,101560344088906,
 609360902271964]