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A085784 as a simple table

na(n)
12
23
35
46
57
69
711
812
913
1015
1117
1218
1319
1420
1521
1623
1727
1829
1930
2031
2133
2236
2337
2439
2541
2642
2743
2845
2947
3050
3151
3253
3354
3456
3557
3659
3760
3861
3963
4066
4167
4269
4370
4471
4572
4673
4775
4878
4979
5081
5183
5284
5387
5489
5590
5693
5797
5899
59101
60102
61103
62105
63107
64108
65109

[2,3,5,6,7,9,11,12,13,15,17,18,19,20,21,23,27,29,
 30,31,33,36,37,39,41,42,43,45,47,50,51,53,54,56,
 57,59,60,61,63,66,67,69,70,71,72,73,75,78,79,81,
 83,84,87,89,90,93,97,99,101,102,103,105,107,108,
 109]