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A133256 as a simple table

na(n)
11
22
34
43
55
66
78
87
99
1010
1112
1211
1313
1414
1516
1615
1717
1818
1920
2019
2121
2222
2324
2423
2525
2626
2728
2827
2929
3030
3132
3231
3333
3434
3536
3635
3737
3838
3940
4039
4141
4242
4344
4443
4545
4646
4748
4847
4949
5050
5152
5251
5353
5454
5556
5655
5757
5858
5960
6059
6161
6262
6364
6463
6565
6666
6768
6867
6969
7070
7172
7271

[1,2,4,3,5,6,8,7,9,10,12,11,13,14,16,15,17,18,20,
 19,21,22,24,23,25,26,28,27,29,30,32,31,33,34,36,
 35,37,38,40,39,41,42,44,43,45,46,48,47,49,50,52,
 51,53,54,56,55,57,58,60,59,61,62,64,63,65,66,68,
 67,69,70,72,71]