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A139706 as a simple table

na(n)
11
22
33
44
56
65
77
88
912
1010
1113
129
1314
1411
1515
1616
1724
1820
1925
2018
2126
2221
2327
2417
2528
2622
2729
2819
2930
3023
3131
3232
3348
3440
3549
3636
3750
3841
3951
4034
4152
4242
4353
4437
4554
4643
4755
4833
4956
5044
5157
5238
5358
5445
5559
5635
5760
5846
5961
6039
6162
6247
6363
6464
6596
6680
6797
6872
6998
7081
7199
7268

[1,2,3,4,6,5,7,8,12,10,13,9,14,11,15,16,24,20,25,
 18,26,21,27,17,28,22,29,19,30,23,31,32,48,40,49,
 36,50,41,51,34,52,42,53,37,54,43,55,33,56,44,57,
 38,58,45,59,35,60,46,61,39,62,47,63,64,96,80,97,
 72,98,81,99,68]