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A154448 as a simple table

na(n)
00
11
23
32
47
56
64
75
814
915
1013
1112
128
139
1410
1511
1628
1729
1830
1931
2027
2126
2224
2325
2416
2517
2618
2719
2820
2921
3022
3123
3256
3357
3458
3559
3660
3761
3862
3963
4054
4155
4253
4352
4448
4549
4650
4751
4832
4933
5034
5135
5236
5337
5438
5539
5640
5741
5842
5943
6044
6145
6246
6347
64112
65113
66114
67115
68116
69117

[0,1,3,2,7,6,4,5,14,15,13,12,8,9,10,11,28,29,30,
 31,27,26,24,25,16,17,18,19,20,21,22,23,56,57,58,
 59,60,61,62,63,54,55,53,52,48,49,50,51,32,33,34,
 35,36,37,38,39,40,41,42,43,44,45,46,47,112,113,
 114,115,116,117]