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A189729 as a simple table

na(n)
12
23
34
45
57
68
710
811
913
1014
1117
1218
1319
1420
1522
1623
1726
1827
1928
2029
2131
2232
2335
2436
2537
2638
2740
2841
2944
3045
3147
3248
3349
3450
3552
3653
3755
3856
3958
4059
4162
4263
4364
4465
4567
4668
4771
4872
4974
5075
5176
5277
5379
5480
5582
5683
5785
5886
5989
6090
6191
6292
6394
6495
6598
6699
67101
68102
69103
70104
71106
72107
73109
74110
75112
76113
77116
78117
79118
80119
81121

[2,3,4,5,7,8,10,11,13,14,17,18,19,20,22,23,26,27,
 28,29,31,32,35,36,37,38,40,41,44,45,47,48,49,50,
 52,53,55,56,58,59,62,63,64,65,67,68,71,72,74,75,
 76,77,79,80,82,83,85,86,89,90,91,92,94,95,98,99,
 101,102,103,104,106,107,109,110,112,113,116,117,
 118,119,121]