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A062406 as a simple table

na(n)
11
22
33
44
55
64
73
82
91
102
113
124
135
144
155
164
175
186
197
206
215
224
235
246
255
264
273
284
295
306
317
326
337
348
359
368
379
3810
3911
4012
4113
4212
4311
4412
4513
4614
4713
4814
4915
5016
5117
5218
5317
5416
5517
5618
5719
5818
5919
6018
6119
6220
6319
6418
6517
6616
6715
6814
6913
7012
7111
7210
7311
7410

[1,2,3,4,5,4,3,2,1,2,3,4,5,4,5,4,5,6,7,6,5,4,5,6,
 5,4,3,4,5,6,7,6,7,8,9,8,9,10,11,12,13,12,11,12,13,
 14,13,14,15,16,17,18,17,16,17,18,19,18,19,18,19,
 20,19,18,17,16,15,14,13,12,11,10,11,10]