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A047538 as a simple table

na(n)
10
21
34
47
58
69
712
815
916
1017
1120
1223
1324
1425
1528
1631
1732
1833
1936
2039
2140
2241
2344
2447
2548
2649
2752
2855
2956
3057
3160
3263
3364
3465
3568
3671
3772
3873
3976
4079
4180
4281
4384
4487
4588
4689
4792
4895
4996
5097
51100
52103
53104
54105
55108
56111
57112
58113
59116
60119
61120
62121
63124

[0,1,4,7,8,9,12,15,16,17,20,23,24,25,28,31,32,33,
 36,39,40,41,44,47,48,49,52,55,56,57,60,63,64,65,
 68,71,72,73,76,79,80,81,84,87,88,89,92,95,96,97,
 100,103,104,105,108,111,112,113,116,119,120,121,
 124]