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A129980 as a simple table

na(n)
01
12
24
37
46
53
615
712
818
99
1015
1124
1224
1333
1424
1533
1624
1733
1824
1951
2042
2151
2233
2351
2469
2551
2660
2769
2860
2987
3060
3160
3287
33105
3487
3587
36105
3787
3887
39105
40114
41105
4296
43141
44123
45123
46159
47150
48159
49150
50141
51141
52132
53168
54159
55150
56177
57159
58159
59168
60195
61186
62195

[1,2,4,7,6,3,15,12,18,9,15,24,24,33,24,33,24,33,
 24,51,42,51,33,51,69,51,60,69,60,87,60,60,87,105,
 87,87,105,87,87,105,114,105,96,141,123,123,159,
 150,159,150,141,141,132,168,159,150,177,159,159,
 168,195,186,195]