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A047555 as a simple table

na(n)
10
21
32
46
57
68
79
810
914
1015
1116
1217
1318
1422
1523
1624
1725
1826
1930
2031
2132
2233
2334
2438
2539
2640
2741
2842
2946
3047
3148
3249
3350
3454
3555
3656
3757
3858
3962
4063
4164
4265
4366
4470
4571
4672
4773
4874
4978
5079
5180
5281
5382
5486
5587
5688
5789
5890
5994
6095
6196
6297
6398
64102
65103
66104

[0,1,2,6,7,8,9,10,14,15,16,17,18,22,23,24,25,26,
 30,31,32,33,34,38,39,40,41,42,46,47,48,49,50,54,
 55,56,57,58,62,63,64,65,66,70,71,72,73,74,78,79,
 80,81,82,86,87,88,89,90,94,95,96,97,98,102,103,
 104]