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A208516 as a simple table

na(n)
11
21
31
41
52
63
71
83
96
107
111
124
139
1415
1517
161
175
1812
1924
2039
2141
221
236
2415
2534
2666
27100
2899
291
307
3118
3245
3398
34178
35256
36239
371
388
3921
4057
41135
42276
43478
44653
45577
461
479
4824
4970
50177
51395
52772
531275
541661
551393
561
5710
5827
5984
60224
61536
621145
632139
643383
654214

[1,1,1,1,2,3,1,3,6,7,1,4,9,15,17,1,5,12,24,39,41,
 1,6,15,34,66,100,99,1,7,18,45,98,178,256,239,1,8,
 21,57,135,276,478,653,577,1,9,24,70,177,395,772,
 1275,1661,1393,1,10,27,84,224,536,1145,2139,3383,
 4214]