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A153348 as a simple table

na(n)
12
23
36
47
59
612
715
816
917
1018
1120
1221
1322
1423
1524
1625
1727
1828
1930
2032
2133
2236
2337
2438
2539
2642
2744
2845
2947
3048
3150
3251
3352
3453
3554
3656
3757
3858
3960
4061
4162
4263
4364
4465
4566
4667
4769
4871
4972
5075
5176
5277
5378
5479
5581
5682
5783
5884
5985
6086
6187
6288
6390
6492
6593
6694

[2,3,6,7,9,12,15,16,17,18,20,21,22,23,24,25,27,28,
 30,32,33,36,37,38,39,42,44,45,47,48,50,51,52,53,
 54,56,57,58,60,61,62,63,64,65,66,67,69,71,72,75,
 76,77,78,79,81,82,83,84,85,86,87,88,90,92,93,94]