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A166720 as a simple table

na(n)
00
13
23
39
412
515
69
721
86
927
1015
1133
1218
1339
1421
1545
1612
1751
1827
1957
20240
2163
2233
2369
2418
2575
2639
2781
2842
2987
3045
3193
3224
3399
3451
35105
36108
37111
3857
39117
4030
41123
4263
43129
4466
45135
4669
47141
4836
49147
5075
51153
52312
53159

[0,3,3,9,12,15,9,21,6,27,15,33,18,39,21,45,12,51,
 27,57,240,63,33,69,18,75,39,81,42,87,45,93,24,99,
 51,105,108,111,57,117,30,123,63,129,66,135,69,141,
 36,147,75,153,312,159]