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A071995 as a simple table

na(n)
11
20
31
42
53
62
73
82
93
104
113
124
135
146
157
166
177
186
197
208
219
2210
239
248
259
268
279
2810
2911
3012
3113
3214
3313
3412
3511
3612
3713
3812
3913
4014
4115
4216
4317
4418
4519
4620
4721
4820
4919
5018
5119
5218
5319
5418
5519
5618
5719
5820
5921
6022
6123
6224
6325
6426
6527
6628
6729
6830
6929
7030
7129
7228
7327
7426
7527
7628
7727
7826

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