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A111660 as a simple table

na(n)
00
10
21
31
42
52
63
73
84
94
105
115
126
136
147
157
168
178
189
199
2010
2110
2211
2311
2412
2512
2613
2713
2814
2914
3015
3115
3215
3316
3416
3517
3617
3718
3818
3919
4019
4120
4220
4321
4421
4522
4622
4723
4823
4924
5024
5125
5225
5326
5426
5527
5627
5728
5828
5928
6029
6129
6230
6330
6431
6531
6632
6732
6833
6933
7034
7134
7235
7335
7436
7536

[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,
 11,12,12,13,13,14,14,15,15,15,16,16,17,17,18,18,
 19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,
 27,27,28,28,28,29,29,30,30,31,31,32,32,33,33,34,
 34,35,35,36,36]