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A103530 as a simple table

na(n)
12
21
32
41
54
63
72
85
98
107
116
121
1312
1411
1510
1613
1716
1815
1914
209
214
2219
2318
2421
2524
2623
2722
2817
2928
3027
3126
3229
3332
3431
3530
3625
3720
383
3934
4037
4140
4239
4338
4433
4544
4643
4742
4845
4948
5047
5146
5241
5336
5451
5550
5653
5756
5855
5954
6049
6160
6259
6358
6461
6564
6663
6762
6857

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