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A257672 as a simple table

na(n)
12
23
34
45
56
67
78
810
912
1013
1117
1218
1319
1421
1523
1628
1730
1831
1934
2035
2146
2247
2348
2450
2552
2657
2763
2875
2977
3078
3182
3292
3393
34122
35123
36124
37126
38128
39133
40139
41151
42168
43198
44200
45201
46205
47216
48244
49245
50321
51322
52323
53325
54327
55332
56338
57350
58367
59397
60443

[2,3,4,5,6,7,8,10,12,13,17,18,19,21,23,28,30,31,
 34,35,46,47,48,50,52,57,63,75,77,78,82,92,93,122,
 123,124,126,128,133,139,151,168,198,200,201,205,
 216,244,245,321,322,323,325,327,332,338,350,367,
 397,443]