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A028966 as a simple table

na(n)
00
12
23
35
46
58
611
712
814
915
1017
1118
1220
1321
1423
1524
1626
1727
1829
1930
2032
2133
2235
2338
2439
2541
2642
2744
2845
2947
3048
3150
3251
3353
3454
3556
3657
3759
3860
3962
4065
4166
4268
4369
4471
4572
4674
4775
4877
4978
5080
5183
5284
5386
5487
5589
5692
5793
5895
5996
6098
6199
62101
63102
64104
65105
66107
67108
68110
69111
70113

[0,2,3,5,6,8,11,12,14,15,17,18,20,21,23,24,26,27,
 29,30,32,33,35,38,39,41,42,44,45,47,48,50,51,53,
 54,56,57,59,60,62,65,66,68,69,71,72,74,75,77,78,
 80,83,84,86,87,89,92,93,95,96,98,99,101,102,104,
 105,107,108,110,111,113]