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A168485 as a simple table

na(n)
00
11
21
33
44
55
63
77
82
99
105
1111
126
1313
147
1515
164
1717
189
1919
2080
2121
2211
2323
246
2525
2613
2727
2814
2929
3015
3131
328
3333
3417
3535
3636
3737
3819
3939
4010
4141
4221
4343
4422
4545
4623
4747
4812
4949
5025
5151
52104
5353
5427
5555
5614
5757
5829
5959

[0,1,1,3,4,5,3,7,2,9,5,11,6,13,7,15,4,17,9,19,80,
 21,11,23,6,25,13,27,14,29,15,31,8,33,17,35,36,37,
 19,39,10,41,21,43,22,45,23,47,12,49,25,51,104,53,
 27,55,14,57,29,59]