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A109167 as a simple table

na(n)
01
12
21
30
44
54
64
74
85
95
105
115
126
136
146
156
167
177
187
197
208
218
228
238
248
259
269
279
289
299
3010
3110
3210
3310
3410
3511
3611
3711
3811
3911
4012
4112
4212
4312
4412
4512
4613
4713
4813
4913
5013
5113
5214
5314
5414
5514
5614
5714
5815
5915
6015
6115
6215
6315
6416
6516
6616
6716
6816
6916
7016
7117
7217
7317
7417
7517
7617
7717
7818

[1,2,1,0,4,4,4,4,5,5,5,5,6,6,6,6,7,7,7,7,8,8,8,8,
 8,9,9,9,9,9,10,10,10,10,10,11,11,11,11,11,12,12,
 12,12,12,12,13,13,13,13,13,13,14,14,14,14,14,14,
 15,15,15,15,15,15,16,16,16,16,16,16,16,17,17,17,
 17,17,17,17,18]