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A122355 as a simple table

na(n)
00
11
23
32
47
56
68
75
84
918
1017
1116
1215
1314
1422
1519
1621
1712
1811
1920
2013
2110
229
2349
2448
2550
2646
2745
2847
2944
3043
3140
3239
3342
3441
3538
3637
3763
3862
3960
4052
4151
4264
4356
4459
4532
4631
4758
4830
4929
5028
5161
5253
5357
5436
5533
5655
5735
5826
5925
6054
6134
6227
6324
6423
65143
66142
67141
68139
69138

[0,1,3,2,7,6,8,5,4,18,17,16,15,14,22,19,21,12,11,
 20,13,10,9,49,48,50,46,45,47,44,43,40,39,42,41,38,
 37,63,62,60,52,51,64,56,59,32,31,58,30,29,28,61,
 53,57,36,33,55,35,26,25,54,34,27,24,23,143,142,
 141,139,138]