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A016028 as a simple table

na(n)
11
22
33
44
56
69
713
818
924
1031
1139
1248
1358
1469
1581
1694
17108
18123
19139
20156
21174
22193
23213
24234
25256
26279
27303
28328
29354
30381
31409
32438
33468
34499
35531
36564
37598
38633
39669
40706
41744
42783
43823
44864
45906
46949
47993
481038
491084
501131
511179

[1,2,3,4,6,9,13,18,24,31,39,48,58,69,81,94,108,
 123,139,156,174,193,213,234,256,279,303,328,354,
 381,409,438,468,499,531,564,598,633,669,706,744,
 783,823,864,906,949,993,1038,1084,1131,1179]