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A188568 as a simple table

na(n)
11
22
33
46
55
64
77
89
98
1010
1115
1212
1313
1414
1511
1616
1720
1818
1919
2017
2121
2228
2323
2426
2525
2624
2727
2822
2929
3035
3131
3233
3332
3434
3530
3636
3745
3838
3943
4040
4141
4242
4339
4444
4537
4646
4754
4848
4952
5050
5151
5249
5353
5447
5555

[1,2,3,6,5,4,7,9,8,10,15,12,13,14,11,16,20,18,19,
 17,21,28,23,26,25,24,27,22,29,35,31,33,32,34,30,
 36,45,38,43,40,41,42,39,44,37,46,54,48,52,50,51,
 49,53,47,55]