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A026481 as a simple table

na(n)
11
23
34
45
56
67
78
89
910
1011
1113
1214
1316
1417
1519
1622
1723
1825
1926
2029
2131
2234
2337
2438
2541
2643
2746
2847
2949
3053
3158
3259
3361
3462
3567
3671
3773
3874
3979
4081
4182
4283
4386
4489
4594
4697
47101
48103
49106
50107
51109
52113
53118
54121
55122
56127
57131
58134
59137
60139
61142
62146
63149
64151
65157

[1,3,4,5,6,7,8,9,10,11,13,14,16,17,19,22,23,25,26,
 29,31,34,37,38,41,43,46,47,49,53,58,59,61,62,67,
 71,73,74,79,81,82,83,86,89,94,97,101,103,106,107,
 109,113,118,121,122,127,131,134,137,139,142,146,
 149,151,157]