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A067628 as a simple table

na(n)
00
13
24
35
46
57
66
77
88
99
108
119
1210
139
1410
1511
1610
1711
1812
1911
2012
2113
2212
2313
2412
2513
2614
2713
2814
2915
3014
3115
3214
3315
3416
3515
3616
3715
3816
3917
4016
4117
4216
4317
4418
4517
4618
4717
4818
4919
5018
5119
5218
5319
5418
5519
5620
5719
5820
5919
6020
6121
6220
6321
6420
6521
6620
6721
6822
6921
7022
7121
7222

[0,3,4,5,6,7,6,7,8,9,8,9,10,9,10,11,10,11,12,11,
 12,13,12,13,12,13,14,13,14,15,14,15,14,15,16,15,
 16,15,16,17,16,17,16,17,18,17,18,17,18,19,18,19,
 18,19,18,19,20,19,20,19,20,21,20,21,20,21,20,21,
 22,21,22,21,22]