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A271943 as a simple table

na(n)
21
33
410
533
6108
7353
81154
93776
1012371
1140586
12133337
13438641
141444848
154764919
1615731660
1751993074
18172003177
19569531599
201887392588
216259572697
2220775058670
2368997611310
24229298384183
25762475061094
262536834093693
278444728118220
2828125035969635
2993713472090623
30312392935140250
311041790050460247
323475597146726072

[1,3,10,33,108,353,1154,3776,12371,40586,133337,
 438641,1444848,4764919,15731660,51993074,
 172003177,569531599,1887392588,6259572697,
 20775058670,68997611310,229298384183,762475061094,
 2536834093693,8444728118220,28125035969635,
 93713472090623,312392935140250,1041790050460247,
 3475597146726072]