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A339711 as a simple table

na(n)
12
22
32
43
54
66
710
817
930
1054
1198
12179
13330
14612
151142
162141
174030
187612
1914422
2027401
2152192
2299639
23190613
24365341
25701454
261348950
272597977
285010384
299675224
3018705433
3136204063
3270145372
33136039509
34264076693
35513063289
36997623061
371941320551
383780466336

[2,2,2,3,4,6,10,17,30,54,98,179,330,612,1142,2141,
 4030,7612,14422,27401,52192,99639,190613,365341,
 701454,1348950,2597977,5010384,9675224,18705433,
 36204063,70145372,136039509,264076693,513063289,
 997623061,1941320551,3780466336]