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A123917 as a simple table

na(n)
11
22
33
45
54
66
77
810
99
108
1111
1213
1312
1414
1515
1619
1716
1818
1917
2021
2120
2222
2323
2426
2525
2624
2729
2828
2927
3030
3131
3236
3332
3433
3534
3637
3735
3838
3939
4042
4140
4241
4343
4445
4546
4644
4747
4851
4949
5050
5148
5253
5352
5456
5554
5658
5755
5857
5959
6061
6160
6262
6364
6469
6563
6665
6766
6868
6967
7070
7171
7274

[1,2,3,5,4,6,7,10,9,8,11,13,12,14,15,19,16,18,17,
 21,20,22,23,26,25,24,29,28,27,30,31,36,32,33,34,
 37,35,38,39,42,40,41,43,45,46,44,47,51,49,50,48,
 53,52,56,54,58,55,57,59,61,60,62,64,69,63,65,66,
 68,67,70,71,74]