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A203491 as a simple table

na(n)
13
26
33
412
510
63
724
880
936
103
1148
12556
13624
1482
153
1696
173348
189540
193760
20256
213
22192
2320596
24170868
25173860
2625002
27676
283
29384
30134412
313171708
328518564
333065704
34171068
352050
363
37768
38888232
3959683122
40442135180
41421158558
4256438584
431107888

[3,6,3,12,10,3,24,80,36,3,48,556,624,82,3,96,3348,
 9540,3760,256,3,192,20596,170868,173860,25002,676,
 3,384,134412,3171708,8518564,3065704,171068,2050,
 3,768,888232,59683122,442135180,421158558,
 56438584,1107888]