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A123499 as a simple table

na(n)
00
11
23
32
46
57
68
75
84
914
1015
1116
1217
1318
1419
1520
1621
1712
1813
1922
2011
219
2210
2337
2438
2539
2640
2741
2842
2943
3044
3145
3246
3347
3448
3549
3650
3751
3852
3953
4054
4155
4256
4357
4458
4531
4632
4759
4834
4935
5036
5160
5261
5362
5430
5533
5663
5728
5823
5924
6064
6129
6225
6326
6427
65107
66108
67109
68110
69111

[0,1,3,2,6,7,8,5,4,14,15,16,17,18,19,20,21,12,13,
 22,11,9,10,37,38,39,40,41,42,43,44,45,46,47,48,49,
 50,51,52,53,54,55,56,57,58,31,32,59,34,35,36,60,
 61,62,30,33,63,28,23,24,64,29,25,26,27,107,108,
 109,110,111]