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A047486 as a simple table

na(n)
10
21
33
45
57
68
79
811
913
1015
1116
1217
1319
1421
1523
1624
1725
1827
1929
2031
2132
2233
2335
2437
2539
2640
2741
2843
2945
3047
3148
3249
3351
3453
3555
3656
3757
3859
3961
4063
4164
4265
4367
4469
4571
4672
4773
4875
4977
5079
5180
5281
5383
5485
5587
5688
5789

[0,1,3,5,7,8,9,11,13,15,16,17,19,21,23,24,25,27,
 29,31,32,33,35,37,39,40,41,43,45,47,48,49,51,53,
 55,56,57,59,61,63,64,65,67,69,71,72,73,75,77,79,
 80,81,83,85,87,88,89]