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A127938 as a simple table

na(n)
11
21
33
42
53
66
74
84
98
107
116
1211
137
148
1515
169
179
1817
1910
2013
2120
2213
2312
2422
2515
2615
2724
2818
2915
3032
3116
3218
3329
3420
3522
3636
3719
3822
3934
4027
4121
4242
4322
4426
4546
4627
4724
4845
4927
5034
5145
5231
5327
5452
5535
5635
5750
5834
5930
6064
6131
6236
6359
6438
6540
6665
6734
6840
6960
7051
7136
7271
7337
7443

[1,1,3,2,3,6,4,4,8,7,6,11,7,8,15,9,9,17,10,13,20,
 13,12,22,15,15,24,18,15,32,16,18,29,20,22,36,19,
 22,34,27,21,42,22,26,46,27,24,45,27,34,45,31,27,
 52,35,35,50,34,30,64,31,36,59,38,40,65,34,40,60,
 51,36,71,37,43]