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A047415 as a simple table

na(n)
11
23
34
46
59
611
712
814
917
1019
1120
1222
1325
1427
1528
1630
1733
1835
1936
2038
2141
2243
2344
2446
2549
2651
2752
2854
2957
3059
3160
3262
3365
3467
3568
3670
3773
3875
3976
4078
4181
4283
4384
4486
4589
4691
4792
4894
4997
5099
51100
52102
53105
54107
55108
56110
57113
58115
59116
60118
61121
62123
63124

[1,3,4,6,9,11,12,14,17,19,20,22,25,27,28,30,33,35,
 36,38,41,43,44,46,49,51,52,54,57,59,60,62,65,67,
 68,70,73,75,76,78,81,83,84,86,89,91,92,94,97,99,
 100,102,105,107,108,110,113,115,116,118,121,123,
 124]