(Translated by https://www.hiragana.jp/)
A049773 - OEIS
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A049773 as a simple table

na(n)
11
21
32
41
53
62
74
81
95
103
117
122
136
144
158
161
179
185
1913
203
2111
227
2315
242
2510
266
2714
284
2912
308
3116
321
3317
349
3525
365
3721
3813
3929
403
4119
4211
4327
447
4523
4615
4731
482
4918
5010
5126
526
5322
5414
5530
564
5720
5812
5928
608
6124
6216
6332
641
6533
6617
6749
689
6941
7025
7157
725
7337
7421
7553
7613
7745
7829
7961
803
8135
8219

[1,1,2,1,3,2,4,1,5,3,7,2,6,4,8,1,9,5,13,3,11,7,15,
 2,10,6,14,4,12,8,16,1,17,9,25,5,21,13,29,3,19,11,
 27,7,23,15,31,2,18,10,26,6,22,14,30,4,20,12,28,8,
 24,16,32,1,33,17,49,9,41,25,57,5,37,21,53,13,45,
 29,61,3,35,19]