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A231206 as a simple table

na(n)
12
23
31
44
59
65
76
87
98
1019
1110
1211
1312
1413
1514
1615
1716
1817
19139
2018
2120
2221
2322
2459
2523
2624
2725
2826
2927
3063
3128
3229
3330
3431
3532
3633
3771
3834
3935
4036
4137
4238
4339
4440
4557
4641
4742
4843
4944
5045
5146
5247
5348
5449
5550
5651
5752
5853
5954
6055
6156
6258
6360
64109
6561
6662
6764
6865
6966
7067
7168
7269
7370
74189
7572
7673

[2,3,1,4,9,5,6,7,8,19,10,11,12,13,14,15,16,17,139,
 18,20,21,22,59,23,24,25,26,27,63,28,29,30,31,32,
 33,71,34,35,36,37,38,39,40,57,41,42,43,44,45,46,
 47,48,49,50,51,52,53,54,55,56,58,60,109,61,62,64,
 65,66,67,68,69,70,189,72,73]