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A123717 as a simple table

na(n)
00
11
22
33
44
56
65
78
87
99
1011
1114
1216
1319
1410
1515
1613
1721
1822
1912
2020
2117
2218
2323
2425
2528
2630
2733
2837
2939
3042
3144
3247
3351
3453
3556
3660
3724
3829
3938
4043
4152
4227
4341
4435
4558
4659
4736
4862
4963
5064
5126
5240
5334
5457
5561
5631
5754
5845
5946
6032
6155
6248
6349
6450
6565
6667
6770
6872
6975
7079
7181

[0,1,2,3,4,6,5,8,7,9,11,14,16,19,10,15,13,21,22,
 12,20,17,18,23,25,28,30,33,37,39,42,44,47,51,53,
 56,60,24,29,38,43,52,27,41,35,58,59,36,62,63,64,
 26,40,34,57,61,31,54,45,46,32,55,48,49,50,65,67,
 70,72,75,79,81]