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A037340 as a simple table

na(n)
12
23
34
45
514
615
716
817
920
1021
1122
1223
1326
1427
1528
1629
1732
1833
1934
2035
2186
2287
2388
2489
2592
2693
2794
2895
2998
3099
31100
32101
33104
34105
35106
36107
37122
38123
39124
40125
41128
42129
43130
44131
45134
46135
47136
48137
49140
50141
51142
52143
53158
54159

[2,3,4,5,14,15,16,17,20,21,22,23,26,27,28,29,32,
 33,34,35,86,87,88,89,92,93,94,95,98,99,100,101,
 104,105,106,107,122,123,124,125,128,129,130,131,
 134,135,136,137,140,141,142,143,158,159]