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A339022 as a simple table

na(n)
21
32
42
54
65
76
87
99
1010
1112
1213
1315
1416
1518
1619
1721
1823
1924
2026
2127
2229
2330
2432
2534
2636
2738
2839
2941
3042
3144
3246
3348
3450
3552
3654
3756
3857
3959
4061
4163
4265
4367
4469
4571
4672
4774
4877
4979
5081
5183
5285
5386
5488
5590
5692
5795
5896
5998
60100
61102
62104
63106
64108

[1,2,2,4,5,6,7,9,10,12,13,15,16,18,19,21,23,24,26,
 27,29,30,32,34,36,38,39,41,42,44,46,48,50,52,54,
 56,57,59,61,63,65,67,69,71,72,74,77,79,81,83,85,
 86,88,90,92,95,96,98,100,102,104,106,108]