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A051274 as a simple table

na(n)
01
10
21
31
42
51
63
72
83
93
104
113
125
134
145
155
166
175
187
196
207
217
228
237
249
258
269
279
2810
299
3011
3110
3211
3311
3412
3511
3613
3712
3813
3913
4014
4113
4215
4314
4415
4515
4616
4715
4817
4916
5017
5117
5218
5317
5419
5518
5619
5719
5820
5919
6021
6120
6221
6321
6422
6521
6623
6722
6823
6923
7024
7123
7225

[1,0,1,1,2,1,3,2,3,3,4,3,5,4,5,5,6,5,7,6,7,7,8,7,
 9,8,9,9,10,9,11,10,11,11,12,11,13,12,13,13,14,13,
 15,14,15,15,16,15,17,16,17,17,18,17,19,18,19,19,
 20,19,21,20,21,21,22,21,23,22,23,23,24,23,25]