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A138987 as a simple table

na(n)
11
22
33
44
55
66
715
817
919
1021
1123
1225
1341
1444
1547
1650
1753
1856
1979
2083
2187
2291
2395
2499
25129
26134
27139
28144
29149
30154
31191
32197
33203
34209
35215
36221
37265
38272
39279
40286
41293
42300
43351
44359
45367
46375
47383
48391
49449
50458
51467
52476
53485
54494
55559
56569
57579
58589
59599

[1,2,3,4,5,6,15,17,19,21,23,25,41,44,47,50,53,56,
 79,83,87,91,95,99,129,134,139,144,149,154,191,197,
 203,209,215,221,265,272,279,286,293,300,351,359,
 367,375,383,391,449,458,467,476,485,494,559,569,
 579,589,599]