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A255938 as a simple table

na(n)
00
11
22
33
44
53
64
75
86
97
106
117
128
139
1410
159
168
177
186
197
206
217
228
239
2410
259
2610
2711
2812
2913
3012
3111
3210
339
3410
359
3610
3711
3812
3913
4012
4113
4214
4315
4416
4515
4614
4713
4812
4913
5012
5111
5212
5313
5412
5513
5614
5715
5816
5915
6014
6113
6212
6313
6412
6513
6614
6715
6816
6915
7016
7117

[0,1,2,3,4,3,4,5,6,7,6,7,8,9,10,9,8,7,6,7,6,7,8,9,
 10,9,10,11,12,13,12,11,10,9,10,9,10,11,12,13,12,
 13,14,15,16,15,14,13,12,13,12,11,12,13,12,13,14,
 15,16,15,14,13,12,13,12,13,14,15,16,15,16,17]