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A281668 as a simple table

na(n)
10
21
31
41
53
62
75
83
98
107
1110
1212
1313
1420
1518
1626
1725
1836
1934
2045
2147
2259
2362
2471
2582
2691
27105
28112
29132
30143
31163
32174
33201
34220
35244
36266
37298
38327
39362
40388
41437
42470
43521
44558
45621
46671
47733
48788
49864
50938
511011
521100
531182
541295
551379
561501
571606
581753
591861
602017
612158
622335
632493
642672
652871
663078

[0,1,1,1,3,2,5,3,8,7,10,12,13,20,18,26,25,36,34,
 45,47,59,62,71,82,91,105,112,132,143,163,174,201,
 220,244,266,298,327,362,388,437,470,521,558,621,
 671,733,788,864,938,1011,1100,1182,1295,1379,1501,
 1606,1753,1861,2017,2158,2335,2493,2672,2871,3078]