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A154436 as a simple table

na(n)
00
11
23
32
47
56
64
75
815
914
1012
1113
129
138
1410
1511
1631
1730
1828
1929
2025
2124
2226
2327
2419
2518
2616
2717
2821
2920
3022
3123
3263
3362
3460
3561
3657
3756
3858
3959
4051
4150
4248
4349
4453
4552
4654
4755
4839
4938
5036
5137
5233
5332
5434
5535
5643
5742
5840
5941
6045
6144
6246
6347
64127
65126
66124
67125
68121
69120

[0,1,3,2,7,6,4,5,15,14,12,13,9,8,10,11,31,30,28,
 29,25,24,26,27,19,18,16,17,21,20,22,23,63,62,60,
 61,57,56,58,59,51,50,48,49,53,52,54,55,39,38,36,
 37,33,32,34,35,43,42,40,41,45,44,46,47,127,126,
 124,125,121,120]