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A234612 as a simple table

na(n)
00
11
22
33
47
56
65
74
88
99
1010
1111
1215
1314
1413
1512
1625
1724
1827
1926
2030
2131
2228
2329
2417
2516
2619
2718
2822
2923
3020
3121
3242
3343
3440
3541
3645
3744
3847
3946
4034
4135
4232
4333
4437
4536
4639
4738
4851
4950
5049
5148
5252
5353
5454
5555
5659
5758
5857
5956
6060
6161
6262
6363
64127
65126
66125

[0,1,2,3,7,6,5,4,8,9,10,11,15,14,13,12,25,24,27,
 26,30,31,28,29,17,16,19,18,22,23,20,21,42,43,40,
 41,45,44,47,46,34,35,32,33,37,36,39,38,51,50,49,
 48,52,53,54,55,59,58,57,56,60,61,62,63,127,126,
 125]