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A220661 as a simple table

na(n)
11
21
32
41
52
63
74
85
96
101
112
123
134
145
156
167
178
189
1910
2011
2112
2213
2314
2415
2516
2617
2718
2819
2920
3021
3122
3223
3324
341
352
363
374
385
396
407
418
429
4310
4411
4512
4613
4714
4815
4916
5017
5118
5219
5320
5421
5522
5623
5724
5825
5926
6027
6128
6229
6330
6431
6532
6633
6734
6835
6936
7037
7138
7239

[1,1,2,1,2,3,4,5,6,1,2,3,4,5,6,7,8,9,10,11,12,13,
 14,15,16,17,18,19,20,21,22,23,24,1,2,3,4,5,6,7,8,
 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,
 26,27,28,29,30,31,32,33,34,35,36,37,38,39]