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A215653 as a simple table

na(n)
12
23
32
43
54
65
76
83
98
109
1110
125
1312
1413
154
167
1716
1817
1918
209
218
2221
2322
245
2524
2625
2726
2813
2928
3011
3130
3215
3310
3433
356
3617
3736
3837
3914
409
4140
4213
4342
4421
4519
4645
4746
487
4948
5049
5116
5225
5352
5453
5521
5613
5720
5857
5958
6011
6160
6261
638
6431
6514
6623
6766
6833
6922
7029

[2,3,2,3,4,5,6,3,8,9,10,5,12,13,4,7,16,17,18,9,8,
 21,22,5,24,25,26,13,28,11,30,15,10,33,6,17,36,37,
 14,9,40,13,42,21,19,45,46,7,48,49,16,25,52,53,21,
 13,20,57,58,11,60,61,8,31,14,23,66,33,22,29]