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A123998 as a simple table

na(n)
11
23
39
415
518
639
748
869
978
1099
11105
12114
13135
14153
15165
16168
17183
18189
19219
20249
21273
22288
23300
24303
25309
26330
27345
28363
29405
30414
31438
32468
33483
34498
35504
36534
37585
38618
39639
40648
41699
42714
43729
44765
45804
46813
47828
48879
49933
501005
511014
521044
531065
541068

[1,3,9,15,18,39,48,69,78,99,105,114,135,153,165,
 168,183,189,219,249,273,288,300,303,309,330,345,
 363,405,414,438,468,483,498,504,534,585,618,639,
 648,699,714,729,765,804,813,828,879,933,1005,1014,
 1044,1065,1068]