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A127515 as a simple table

na(n)
11
22
33
45
54
67
78
86
99
1014
1110
1211
1312
1415
1517
1616
1718
1829
1922
2020
2123
2240
2313
2421
2519
2626
2728
2844
2927
3025
3131
3235
3324
3436
3532
3637
3738
3849
3948
4042
4141
4230
4333
4445
4561
4643
4756
4851
4964
5034
5172
5263
5366
5446
5555
5668
5750
5867
5952
6039
6153
6274
6393
6454
6587
6675
6759
6871
6962
7060
7173
7258

[1,2,3,5,4,7,8,6,9,14,10,11,12,15,17,16,18,29,22,
 20,23,40,13,21,19,26,28,44,27,25,31,35,24,36,32,
 37,38,49,48,42,41,30,33,45,61,43,56,51,64,34,72,
 63,66,46,55,68,50,67,52,39,53,74,93,54,87,75,59,
 71,62,60,73,58]