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A139708 as a simple table

na(n)
11
22
33
44
56
65
77
88
912
1010
1114
129
1311
1413
1515
1616
1724
1820
1928
2018
2122
2226
2330
2417
2519
2621
2723
2825
2927
3029
3131
3232
3348
3440
3556
3636
3744
3852
3960
4034
4138
4242
4346
4450
4554
4658
4762
4833
4935
5037
5139
5241
5343
5445
5547
5649
5751
5853
5955
6057
6159
6261
6363
6464
6596
6680
67112
6872
6988
70104
71120

[1,2,3,4,6,5,7,8,12,10,14,9,11,13,15,16,24,20,28,
 18,22,26,30,17,19,21,23,25,27,29,31,32,48,40,56,
 36,44,52,60,34,38,42,46,50,54,58,62,33,35,37,39,
 41,43,45,47,49,51,53,55,57,59,61,63,64,96,80,112,
 72,88,104,120]