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A283970 as a simple table

na(n)
11
22
33
44
55
66
77
89
910
1011
1112
1213
1315
1417
1519
1623
1725
1829
1930
2031
2135
2236
2337
2440
2541
2643
2747
2848
2949
3050
3153
3259
3360
3461
3565
3667
3771
3873
3976
4079
4183
4289
4397
44101
45103
46107
47109
48113
49120
50121
51127
52130
53131
54132
55136
56137
57139
58140
59149
60150
61151
62157
63163
64167
65169
66173
67175
68179
69180

[1,2,3,4,5,6,7,9,10,11,12,13,15,17,19,23,25,29,30,
 31,35,36,37,40,41,43,47,48,49,50,53,59,60,61,65,
 67,71,73,76,79,83,89,97,101,103,107,109,113,120,
 121,127,130,131,132,136,137,139,140,149,150,151,
 157,163,167,169,173,175,179,180]