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A087268 as a simple table

na(n)
11
22
33
45
57
69
711
812
913
1017
1118
1219
1321
1423
1525
1626
1728
1829
1931
2032
2134
2235
2336
2437
2541
2642
2743
2845
2947
3049
3152
3253
3355
3457
3559
3660
3761
3865
3967
4068
4169
4270
4371
4473
4574
4676
4779
4881
4983
5084
5185
5286
5387
5488
5589
5691
5795
5897
5998
6099
61101
62103
63104
64106
65107
66109
67110
68111

[1,2,3,5,7,9,11,12,13,17,18,19,21,23,25,26,28,29,
 31,32,34,35,36,37,41,42,43,45,47,49,52,53,55,57,
 59,60,61,65,67,68,69,70,71,73,74,76,79,81,83,84,
 85,86,87,88,89,91,95,97,98,99,101,103,104,106,107,
 109,110,111]