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A154734 as a simple table

na(n)
12
24
312
4138
5822
62082
73918
821738
939342
1062130
1170878
12106032
13117372
14129288
15135462
16182712
17512580
18524802
19575130
20682698
21769422
22799482
23893118
241008912
251026030
261043292
271828830
282368578
292447580
303247428
313278082
323465030
334022868
344056978

[2,4,12,138,822,2082,3918,21738,39342,62130,70878,
 106032,117372,129288,135462,182712,512580,524802,
 575130,682698,769422,799482,893118,1008912,
 1026030,1043292,1828830,2368578,2447580,3247428,
 3278082,3465030,4022868,4056978]