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A298540 as a simple table

na(n)
11
22
33
45
56
67
710
811
913
1014
1115
1217
1319
1421
1522
1623
1726
1829
1930
2031
2133
2234
2337
2438
2539
2641
2742
2843
2946
3047
3151
3253
3355
3457
3558
3659
3761
3862
3965
4066
4167
4269
4371
4473
4574
4677
4778
4879
4982
5083
5185
5286
5387
5489
5591
5693
5794
5895
5997
60101
61102
62103
63106
64107
65109

[1,2,3,5,6,7,10,11,13,14,15,17,19,21,22,23,26,29,
 30,31,33,34,37,38,39,41,42,43,46,47,51,53,55,57,
 58,59,61,62,65,66,67,69,71,73,74,77,78,79,82,83,
 85,86,87,89,91,93,94,95,97,101,102,103,106,107,
 109]