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A003258 as a simple table

na(n)
12
23
35
47
58
610
712
813
915
1016
1118
1220
1321
1423
1524
1626
1728
1829
1931
2033
2134
2236
2337
2439
2541
2642
2744
2846
2947
3049
3150
3252
3354
3455
3557
3658
3760
3862
3963
4065
4167
4268
4370
4471
4573
4675
4776
4878
4980
5081
5183
5284
5386
5488
5589
5691
5792
5894
5996
6097
6199
62101
63102
64104
65105

[2,3,5,7,8,10,12,13,15,16,18,20,21,23,24,26,28,29,
 31,33,34,36,37,39,41,42,44,46,47,49,50,52,54,55,
 57,58,60,62,63,65,67,68,70,71,73,75,76,78,80,81,
 83,84,86,88,89,91,92,94,96,97,99,101,102,104,105]