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A047260 as a simple table

na(n)
10
21
34
45
56
67
710
811
912
1013
1116
1217
1318
1419
1522
1623
1724
1825
1928
2029
2130
2231
2334
2435
2536
2637
2740
2841
2942
3043
3146
3247
3348
3449
3552
3653
3754
3855
3958
4059
4160
4261
4364
4465
4566
4667
4770
4871
4972
5073
5176
5277
5378
5479
5582
5683
5784
5885
5988
6089
6190
6291
6394
6495
6596
6697

[0,1,4,5,6,7,10,11,12,13,16,17,18,19,22,23,24,25,
 28,29,30,31,34,35,36,37,40,41,42,43,46,47,48,49,
 52,53,54,55,58,59,60,61,64,65,66,67,70,71,72,73,
 76,77,78,79,82,83,84,85,88,89,90,91,94,95,96,97]