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A121930 as a simple table

na(n)
00
10
21
32
42
53
64
74
85
96
106
117
128
138
149
1510
1610
1711
1812
1912
2013
2114
2214
2315
2416
2517
2617
2718
2819
2919
3020
3121
3221
3322
3423
3523
3624
3725
3825
3926
4027
4127
4228
4329
4429
4530
4631
4732
4832
4933
5034
5134
5235
5336
5436
5537
5638
5738
5839
5940
6040
6141
6242
6342
6443
6544
6644
6745
6846
6947
7047
7148
7249
7349

[0,0,1,2,2,3,4,4,5,6,6,7,8,8,9,10,10,11,12,12,13,
 14,14,15,16,17,17,18,19,19,20,21,21,22,23,23,24,
 25,25,26,27,27,28,29,29,30,31,32,32,33,34,34,35,
 36,36,37,38,38,39,40,40,41,42,42,43,44,44,45,46,
 47,47,48,49,49]