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A258456 as a simple table

na(n)
12
23
34
45
57
69
711
812
913
1017
1118
1219
1320
1423
1525
1628
1729
1831
1932
2036
2137
2241
2343
2444
2545
2647
2748
2849
2950
3052
3153
3259
3361
3463
3564
3667
3768
3871
3973
4075
4176
4279
4380
4483
4589
4692
4797
4898
4999
50100
51101
52103
53107
54109
55112
56113
57116
58117
59121
60124
61127
62131
63137

[2,3,4,5,7,9,11,12,13,17,18,19,20,23,25,28,29,31,
 32,36,37,41,43,44,45,47,48,49,50,52,53,59,61,63,
 64,67,68,71,73,75,76,79,80,83,89,92,97,98,99,100,
 101,103,107,109,112,113,116,117,121,124,127,131,
 137]