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A047548 as a simple table

na(n)
11
22
33
44
57
69
710
811
912
1015
1117
1218
1319
1420
1523
1625
1726
1827
1928
2031
2133
2234
2335
2436
2539
2641
2742
2843
2944
3047
3149
3250
3351
3452
3555
3657
3758
3859
3960
4063
4165
4266
4367
4468
4571
4673
4774
4875
4976
5079
5181
5282
5383
5484
5587
5689

[1,2,3,4,7,9,10,11,12,15,17,18,19,20,23,25,26,27,
 28,31,33,34,35,36,39,41,42,43,44,47,49,50,51,52,
 55,57,58,59,60,63,65,66,67,68,71,73,74,75,76,79,
 81,82,83,84,87,89]