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A066418 as a simple table

na(n)
12
23
34
45
56
67
78
812
915
1027
1130
1240
1344
1457
15117
16128
17171
18236
19399
20408
21510
221623
233597
243915
254616
264684
277335
2810197
2910768
3014144
3132768
3239387
3376035
3477097
35106605
36162450
37196080
38219966
39391696

[2,3,4,5,6,7,8,12,15,27,30,40,44,57,117,128,171,
 236,399,408,510,1623,3597,3915,4616,4684,7335,
 10197,10768,14144,32768,39387,76035,77097,106605,
 162450,196080,219966,391696]