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A140473 as a simple table

na(n)
00
11
21
32
42
53
63
73
84
95
105
115
126
136
147
158
168
178
189
199
209
2110
2210
2311
2412
2512
2612
2714
2814
2914
3014
3114
3215
3315
3415
3516
3618
3718
3818
3918
4018
4120
4221
4321
4421
4522
4622
4722
4823
4923
5023
5123
5223
5324
5427
5527
5627
5727
5827
5927
6027
6127
6229
6331
6431
6531
6631
6731
6832
6933
7033
7133
7235
7335
7435
7535

[0,1,1,2,2,3,3,3,4,5,5,5,6,6,7,8,8,8,9,9,9,10,10,
 11,12,12,12,14,14,14,14,14,15,15,15,16,18,18,18,
 18,18,20,21,21,21,22,22,22,23,23,23,23,23,24,27,
 27,27,27,27,27,27,27,29,31,31,31,31,31,32,33,33,
 33,35,35,35,35]