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A160979 as a simple table

na(n)
10
20
30
40
50
60
70
80
91
101
111
121
131
141
151
161
171
182
191
202
211
222
231
242
251
262
273
283
293
305
314
325
336
346
356
3610
378
389
3911
4012
4111
4214
4313
4415
4519
4617
4718
4822
4921
5023
5125
5225
5326
5433
5531
5634
5737
5839
5940
6050
6146
6252
6359
6462
6565
6675
6774
6882
6989
7098
7198
72118
73115
74128
75138
76147
77153
78173
79174
80194
81208
82220
83228
84256

[0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,
 1,2,3,3,3,5,4,5,6,6,6,10,8,9,11,12,11,14,13,15,19,
 17,18,22,21,23,25,25,26,33,31,34,37,39,40,50,46,
 52,59,62,65,75,74,82,89,98,98,118,115,128,138,147,
 153,173,174,194,208,220,228,256]