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A050942 as a simple table

na(n)
11
22
33
45
56
67
78
811
912
1013
1114
1215
1317
1418
1521
1622
1723
1824
1926
2027
2128
2229
2330
2432
2533
2637
2738
2839
2940
3041
3142
3243
3344
3445
3547
3648
3750
3851
3953
4054
4157
4258
4359
4460
4561
4662
4763
4865
4966
5067
5168
5269
5370
5471
5572
5673
5775
5876
5977
6078
6179
6282
6386
6487
6588

[1,2,3,5,6,7,8,11,12,13,14,15,17,18,21,22,23,24,
 26,27,28,29,30,32,33,37,38,39,40,41,42,43,44,45,
 47,48,50,51,53,54,57,58,59,60,61,62,63,65,66,67,
 68,69,70,71,72,73,75,76,77,78,79,82,86,87,88]