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A108548 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1113
1212
1311
1414
1515
1616
1717
1818
1919
2020
2121
2226
2329
2424
2525
2622
2727
2828
2923
3030
3137
3232
3339
3434
3535
3636
3731
3838
3933
4040
4141
4242
4343
4452
4545
4658
4753
4848
4949
5050
5151
5244
5347
5454
5565
5656
5757
5846
5961
6060
6159
6274
6363
6464
6555
6678
6773
6868
6987
7070
7167
7272

[1,2,3,4,5,6,7,8,9,10,13,12,11,14,15,16,17,18,19,
 20,21,26,29,24,25,22,27,28,23,30,37,32,39,34,35,
 36,31,38,33,40,41,42,43,52,45,58,53,48,49,50,51,
 44,47,54,65,56,57,46,61,60,59,74,63,64,55,78,73,
 68,87,70,67,72]