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A111611 as a simple table

na(n)
11
21
33
44
54
66
77
88
99
103
1111
126
1313
1414
1515
168
1717
189
1919
2020
2121
2222
2323
2424
255
2613
2727
2814
2929
306
3131
3216
3333
3417
3514
3636
3737
3838
3939
4016
4141
4221
4343
4422
4527
4646
4747
4824
4949
505
5151
5252
5353
5454
5544
5656
5757
5829
5959
6018
6161
6262
6363
6432
6565
6633
6767
6868
6969
7070
7171
7272
7373
7437
7515

[1,1,3,4,4,6,7,8,9,3,11,6,13,14,15,8,17,9,19,20,
 21,22,23,24,5,13,27,14,29,6,31,16,33,17,14,36,37,
 38,39,16,41,21,43,22,27,46,47,24,49,5,51,52,53,54,
 44,56,57,29,59,18,61,62,63,32,65,33,67,68,69,70,
 71,72,73,37,15]